Kierownik zespołu
prof. dr hab. Stanisław Lipiński
tel.: 61 86 95 127, nr pokoju: 143
Obecny skład zespołu
prof. dr hab. Józef Barnaś
tel.: 61 86 95 123, nr pokoju: 139
e-mail: jozef.barnas@ifmpan.poznan.pl
prof. dr hab. Stefan Krompiewski
tel.: 61 86 95 126, nr pokoju: 142
dr hab. Maciej Zwierzycki
tel.: 61 86 95 128, nr pokoju: 170
dr Łukasz Karwacki
tel.: 61 86 95 123, nr pokoju: 139
e-mail: lukasz.karwacki@ifmpan.poznan.pl
dr inż. Damian Krychowski
tel.: 61 86 95 292, nr pokoju: 322
dr Krzysztof Piotr Wójcik
tel.: 61 86 95 123, nr pokoju: 139
Cele badawcze
Badania mają charakter poznawczy, ich celem jest interpretacja niewyjaśnionych do tej pory zjawisk fizycznych zachodzących w nanostrukturach oraz modelowanie tych nanostruktur. Badania dotyczą zagadnień istotnych z praktycznego punktu widzenia, związanych z nanotechnologią, spintroniką i kalorytroniką spinową. Szczególną uwagę zwraca się na problemy dotyczące transportu spinowego, korelacji elektronowych (hubbardowskie, blokada kulombowska, efekt Kondo) i niedoskonałości strukturalnych (efekty brzegowe, interfejsy, defekty, domieszki, pofałdowanie powierzchni itd.). Rozwijanie teorii opartej na wykorzystaniu spinowego (obok ładunkowego) stopnia swobody elektronu nawiązuje do innowacyjnych, energooszczędnych koncepcji elektroniki przyszłości, istotnych dla ochrony środowiska naturalnego i gospodarki.
Profil badawczy
Badania teoretyczne zjawisk elektronowych, magnetycznych i magneto-termoelektrycznych w układach nanoskopowych. W szczególności intensywnie badane są nanostruktury węglowe (nanorurki i grafen), układy grafenopodobne oraz kropki kwantowe. Stosowany jest szeroki wachlarz metod obliczeniowych, począwszy od metod analitycznych i wstępnej analizy przy pomocy prostych programów poprzez obliczenia w modelu ciasnego wiązania, aż do zaawansowanych obliczeń z pierwszych zasad. W badaniach transportowych używana jest technika funkcji Greena w kombinacji z metodą Landauera-Büttikera i formalizmem Keldysha (w przypadku nierównowagowym).
Programy badawcze
- Projekt 6 PR UE - Carbon nanotube devices at the quantum limit CARDEQ (2006-2009), kierownik - prof. S. Krompiewski
- Projekt MNiSW - Przyrządy z nanorurek węglowych w limicie kwantowym (2006-2009), kierownik - prof. S. Krompiewski
- Projekt promotorski MNiSW - Analiza wpływu silnych korelacji na transport elektronowy w nanostrukturach (2009-2010), kierownik - dr hab. S. Lipiński, prof. IFM PAN (doktorant - mgr inż. D. Krychowski)
- Projekt MNiSW - Wpływ topologii, interfejsów i korelacji elektronowych na transport ładunku i spinu w nanostrukturach grafenowych (2010-2013), kierownik - prof. S. Krompiewski
- Projekt NCN - Grafenowe (oraz podobne) nanostruktury dla spintroniki i kalorytroniki spinowej. Studia teoretyczne (2014-2017), kierownik - prof. S. Krompiewski
Osiągnięcia naukowe
- Zbadano spinowy efekt Halla w jedno- i dwuwarstwowym grafenie. Pokazano, że w przypadku pola prostopadłego do płaszczyzny grafenowej istnieje przejście od fazy topologicznego izolatora do fazy zwykłego izolatora
- Wykonano modelowe obliczenia szumu ziarnistego dla podwójnego magnetycznego złącza tunelowego. Przewidywania teoretyczne zweryfikowano przez porównanie z wynikami eksperymentalnymi dla Fe/MgO/Fe/MgO/Fe
- Zbadano wpływ poprzecznej anizotropii magnetycznej na prądowe przełączanie spinu pojedynczego atomu lub pojedynczej magnetycznej molekuły. Pokazano, że zjawisko kwantowego tunelowania namagnesowania uwidacznia się w pewnych polach rezonansowych, gdy przynajmniej jedna elektroda jest ferromagnetyczna
- Pokazano, że w obszarze poza osobliwościami van Hove’a polaryzacja spinowa domieszki dla symetrii SU(2) jest przeciwna do polaryzacji dwuwarstwy grafenowej, a dla SU(4) zgodna. W pobliżu osobliwości stwierdzono możliwość odwrócenia momentu magnetycznego domieszki
- Zbadano wpływ interfejsów między elektrodami a strukturą grafenową oraz krawędziowych stanów elektronowych (w tym tworzących się momentów magnetycznych) na transport elektronowy
- Zastosowano efektywną metodę rekurencyjną (knitting) do zbadania transportu elektronowego w grafenie z wieloma elektrodami. Stwierdzono istnienie dużego efektu typu zaworu spinowego w przypadku czterech elektrod umieszczonych centralnie na bokach kwadratowego płatka grafenowego
- W oparciu o obliczenia struktury pasmowej ab initio oraz stosując kilka komplementarnych technik analizy efektów wielociałowych zbadano efekt Kondo dla atomu kobaltu osadzonego na pasku grafenowym typu zygzak. Przedyskutowano współzawodnictwo spinowych i orbitalnych stopni swobody oraz detali struktury elektronowej i magnetycznej pasków na powstawanie rezonansu Kondo
- Pokazano, że momenty magnetyczne na krawędziach pasków grafenowych typu zygzak mogą ulec znacznemu osłabieniu lub całkowitemu wygaszeniu po przyłożeniu zewnętrznych elektrod prądowych. Efekt silnie zależy od własności elektronowych interfejsu grafen/elektroda oraz od odległości między elektrodami
- Zbadano też wpływ niedoskonałości strukturalnych badanych nanostruktur, w tym wspomnianych już efektów brzegowych, granic między ziarnami w strukturach polikrystalicznych i tzw. antykropek (pustych obszarów).
W latach 2009-2017 Zakład Teorii Nanostruktur realizował 5 programów badawczych (w tym 1 europejski i 1 bilateralny „Harmonia”). Projekty te poświęcone były badaniom zjawisk fizycznych zachodzących w nanorurkach węglowych, grafenie oraz w nanostrukturach grafenopodobnych o potencjalnym znaczeniu dla nowatorskich zastosowań w nanoelektronice i spintronice.
.
- Technische Universität Dresden, Niemcy
- University of Twente, Holandia
- Max Planck Institute for Solid State Research, Stuttgart, Niemcy
- CNRS-Thales, Orsay, Francja
- Insitut for Theoretical Physics, RWTH, Aachen, Niemcy
- Universität Regensburg, Regensburg, Niemcy
2013/10/M/ST3/00488 (HARMONIA 5)
prof. dr hab. Stefan Krompiewski

Transport through strongly correlated triple quauntum dot
D. Krychowski, M. Antkiewicz and S. Lipiński, J. of Mag. and Mag. Mat. 541, 168564 (2022)
DOI: 10.1016/j.jmmm.2021.168564

One edge magnetic configurations in graphene, stanene and phosphorene zigzag nanoribbons
S. Krompiewski, J. of Mag. and Mag. Mat. 534, 168036 (2021)
DOI: 10.1016/j.jmmm.2021.168036

Spectral properties of a Co-decorated quasi-two-dimensional GaSe layer
I. Weymann , M. Zwierzycki,and S. Krompiewski, Phys. Rev. B 102, 075309 (2020)
DOI: 10.1103/PhysRevB.102.075309

Magnetic Kondo regimes in a frustrated half-filled trimer
Krzysztof P. Wójcik, Ireneusz Weymann, and Johann Kroha, Phys. Rev. B 102, 045144 (2020)
DOI: PhysRevB.102.045144

Kondo effects in small bandgap carbon nanotube quantum dots
P. Florków, D. Krychowski and S. Lipiński, Beilstein J. Nanotechnol. 2020, 11, 1873–1890 (2020)
DOI: 10.3762/bjnano.11.169

Selected graphenelike zigzag nanoribbons with chemically functionalized edges: Implications for electronic and magnetic properties
S. Krompiewski, Phys. Rev. B 100, 125421 (2019)
DOI: 10.1103/PhysRevB.100.125421

Nonlocal pairing as a source of spin exchange and Kondo screening
K.P. Wójcik and I. Weymann, Phys. Rev. B 99, 045120 (2019)
DOI: 10.1103/PhysRevB.99.045120

Intra- and inter-shell Kondo effects in carbon nanotube quantum dots
D. Krychowski and S. Lipiński, Europ. Phys. J. B 91, 8 (2018)
DOI: 10.1140/epjb/e2017-80547-y

Anomalous, spin, and valley Hall effects in graphene deposited on ferromagnetic substrates
A. Dyrdał and J. Barnaś, 2D Mater. 4 (2017) 034003
DOI: 10.1088/2053-1583/aa7bac

Spectral properties and the Kondo effect of cobalt adatoms on silicene
I. Weymann, M. Zwierzycki, and S, Krompiewski, Phys. Rev. B 96 (2017) 115452.
DOI: 10.1103/PhysRevB.96.115452
Publikacje: 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005
2020
- Magnetic Kondo Regimes in a Frustrated Half-Filled TrimerPhys. Rev. B 102, 045144 (2020)
- Majorana-Kondo Interplay in T-Shaped Double Quantum DotsPhys. Rev. B 101, 235404 (2020)
- Spectral Properties of a Co-Decorated Quasi-Two-Dimensional GaSe LayerPhys. Rev. B 102, 075309 (2020)
- Stratonovich-Ito Integration Scheme in Ultrafast Spin CaloritronicsPhys. Rev. B 102, 024413 (2020)
- Optimization of Spin Hall Magnetoresistance in Heavy-Metal/Ferromagnetic-Metal BilayersScientific Reports 10, 10767 (2020)
- Kondo Effects in Small-Bandgap Carbon Nanotube Quantum DotsBeilstein J. Nanotechnol 11, 1873 (2020)+
- The Role of Spin-Flip Assisted or Orbital Mixing Tunneling on Transport through Strongly Correlated Multilevel Quantum DotJournal of Magnetism and Magnetic Materials 497, 166050 (2020)
- Determining the Rashba Parameter from the Bilinear Magnetoresistance Response in a Two-Dimensional Electron GasPhys. Rev. Materials 4, 071001 (2020)
- Phonon-Assisted Transport through Double-Dot Aharonov-Bohm Interferometer in Kondo RegimeActa Phys. Pol. A 137, 747 (2020)
2019
- Determination of Spin Hall Angle in Heavy-Metal/Co−Fe−B-Based Heterostructures with Interfacial Spin-Orbit FieldsPhys. Rev. Applied 11, 024039 (2019)
- Field-Free Spin-Orbit-Torque Switching in Co/Pt/Co Multilayer with Mixed Magnetic AnisotropiesPhys. Rev. Applied 12, 014006 (2019)
- Giant Superconducting Proximity Effect on Spintronic AnisotropyPhys. Rev. B 100, 045401 (2019)
- Influence of Spin-Orbit and Spin-Hall Effects on the Spin-Seebeck Current beyond Linear Response: A Fokker-Planck ApproachPhys. Rev. B 99, 024410 (2019)
- Nonlocal Pairing as a Source of Spin Exchange and Kondo ScreeningPhys. Rev. B 99, 045120 (2019)
- Selected Graphenelike Zigzag Nanoribbons with Chemically Functionalized Edges: Implications for Electronic and Magnetic PropertiesPhys. Rev. B 100, 125421 (2019)
- Field- and Temperature-Modulated Spin Diode Effect in a GMR Nanowire with Dipolar CouplingJournal of Physics D: Applied Physics 52, 065002 (2019)
2018
- Charge and Spin Currents in Graphene Generated by Tailored Light with Orbital Angular MomentumApplied Physics Letters 112, 231102 (2018)
- Half-Metallicity in Zigzag Phosphorene Nanoribbons with Magnetic EdgesNANOTECHNOLOGY 29, 385204 (2018)
- Current-Induced Spin Polarization in the Isotropic k-Cubed Rashba Model: Theoretical Study of p-Doped Semiconductor Heterostructures and Perovskite-Oxide InterfacesPhys. Rev. B 97, 235302 (2018)
- Interplay of the Kondo Effect with the Induced Pairing in Electronic and Caloric Properties of T-Shaped Double Quantum DotsPhys. Rev. B 97, 235449 (2018)
- Thermally Induced Spin Polarization in a Magnetized Two-Dimensional Electron Gas with Rashba Spin-Orbit InteractionPhys. Rev. B 98, 075307 (2018)
- Thermoelectric Properties of a Quantum Dot Coupled to Magnetic Leads by Rashba Spin-Orbit InteractionPhys. Rev. B 98, 075413 (2018)
- Intra- and Inter-Shell Kondo Effects in Carbon Nanotube Quantum DotsThe European Physical Journal B 91, 8 (2018)
- Effect of Magnetic Zigzag Edges in Graphene-like Nanoribbons on the Thermoelectric Power FactorACTA PHYSICA POLONICA A 133, 535 (2018)
- Spin Dependent Conductance of a Quantum Dot Side Attached to Topological Superconductors as a Probe of Majorana Fermion StatesACTA PHYSICA POLONICA A 133, 552 (2018)
2017
- Anomalous, spin, and valley Hall effects in graphene deposited on ferromagnetic substrates2D Materials, 4, 3, 034003 (2017)
- In-Plane Edge Magnetism in Graphene-Like NanoribbonsActa Physica Polonica A, 131, 4, 1, 828-829 (2017)
- Magnetic Properties of Hexagonal Graphene NanomeshesActa Physica Polonica A, 131, 4, 1, 830-832 (2017)
- Spectral properties and the Kondo effect of cobalt adatoms on silicenePhysical Review B, 96, 115452 (2017)
- Edge magnetism impact on electrical conductance and thermoelectric properties of graphenelike nanoribbonsPhysical Review B, 96, 155447 (2017)
- Transport through capacitively coupled embedded and T-shape quantum dots in the Kondo rangePhysica E, 98, 1-8 (2017)
2016
- Electric-field tunable spin diode FMR in patterned PMN-PT/NiFe structuresApplied Physics Letters, 109, 072406 (2016)
- Edge magnetism of finite graphene-like nanoribbons in the presence of intrinsic spin-orbit interaction and perpendicular electric fieldNanotechnology, 27, 315201 (2016)
- Spin-orbital and spin Kondo effects in parallel coupled quantum dotsPhysical Review B, 7, 93, 075416-1-075416-15 (2016)
- Estimation of transverse spin penetration length using second-harmonic measurement: Proposal of an experimental methodPhysical Review B. 94 144414 (2016)
- Detailed investigation of thermal and electron transport properties in strongly correlated compound Ce6Pd12In5 and its nonmagnetic analog La6Pd12In5Journal of Applied Physics 120, 195106 (2016)
- Two-dimensional electron gas at the LaAlO3/SrTiO3 inteface with a potential barrierPhysical Chemistry & Chemical Physics 18, 2104 (2016)
2015
- Effect of External Contacts on Edge Magnetic Moments in Graphene NanoribbonsActa Physica Polonica A, 2, 127, 523-524 (2015)
- The influence of interlayer exchange coupling in giant-magnetoresistive devices on spin diode effect in wide frequency rangeApplied Physics Letters, 12, 107 (2015)
- Spin and charge transport in double-junction Fe/MgO/GaAs/MgO/Fe heterostructuresJournal Of Applied Physics, 4, 117, 043908-1-7 (2015)
- Thermoelectric properties of zigzag silicene nanoribbons doped with Co impurity atomsJournal Of Magnetism And Magnetic Materials, 393, 305-309 (2015)
- Rectification of radio-frequency current in a giant-magnetoresistance spin valvePhysical Review B, 1, 91 (2015)
- Thermoelectric effect enhanced by resonant states in graphenePhysical Review B, 11, 91 (2015)
- Effects of spin pumping on spin waves in antiferromagnetically exchange-coupled double layersActa Physica Polonica A, 128, 150 (2015)
- Current-induced spin polarization and spin-orbit torque in graphenePhysical Review B, 16, 92 (2015)
- Kondo-Fano Effect in Double Quantum Dot Side Attached to a Pair of WiresActa Physica Polonica A, 2, 127, 487-489 (2015)
- Transport through graphenelike flakes with intrinsic spin-orbit interactionsPhysical Review B, 92, 045427_1-9 (2015)
- Superpoissonian shot noise i organic magnetic tunnel junctionsApplied Physics Letters, 105, 233302 (2014)
2014
- Transport properties of rippled grapheneJournal of Physics-Condensed Matter 26, 135303, (2014)
- Limited robustness of edge magnetism in zigzag graphene nanoribbons with electrodesNanotechnology 25, 465201, (2014)
- Electronic Transport in Multi-Terminal Graphene Device with Various Arrangements of ElectrodesActa Physica Polonica A 126, 194, (2014)
- Correlation effects and spin dependent transport in carbon nanostructuresActa Physica Polonica A 126, 190, (2014)
- Fano-Kondo effect of magnetic impurity with side-coupled graphene flakeActa Physica Polonica A 126, 202, (2014)
- Spin Hall effect in AA-stacked bilayer graphemeSolid State Communications 188, 27 (2014)
- Kondo effect of a cobalt adatom on a zigzag graphene nanoribbonPhysical Review B 89, 035424, 2014
- Optical spin injection in graphene with Rashba spin-orbit interactionPhys. Rev. B 89, 155411 (2014)
- Spin-torque diode radio-frequency detector with voltage tuned resonanceApplied Physics Letters 105, 072409 (2014)
2013
- Shot noise in magnetic double-barrier tunnel junctionsPhysical Review B 87, 155406, (2013)
- The effect of electrode/grapheme interfaces and dephasing processes on conductance and giant magnetoresistancePhysica Status Solidi – Rapid Research Letters 7, 542, (2013)
- Spin-transfer torque and current-induced switching in metallic spin valves with perpendicular polarizersPhysical Review B 88, 094422, (2013)
- Kondo effect near the Van Hove singularity in biased bilayer grapheneJournal of the Korean Physical Society 62, 1440, (2013)
- Asymmetry-induced effects in Kondo quantum dots coupled to ferromagnetic leadsJ. Phys.: Condens. Matter 25 075301 (2013)
- Thermally induced spin polarization of a two-dimensional electron gasPhysical Review B 87, 245309 (2013)
- Effects of Transverse Magnetic Anisotropy on Current-Induced Spin SwitchingPhys. Rev. Letters 111, 046603 (2013)
2012
- Spin-dependent transport through graphene quantum dotsJournal of Nanoscience and Nanotechnology Vol. 12, 7525, 2012
- Effect of the attachment of ferromagnetic contacts on the conductivity and giant magnetoresistance of graphene nanoribbonsNanotechnology 23, 135203, 2012
- Multiplet ligand-field theory using Wannier orbitalsPhysical Review B 85, 165113, 2012
- Manifestation of the shape and edge effects in spin-resolved transport through graphene quantum dotsPhysical Review B 85, 205306, 2012
- Two Kondo Impurities in Armchair Graphene NanoribbonActa Physica Polonica A, 121, No. 5-6, 1063, 2012
- Intrinsic Spin Hall and Spin Nernst Effects in Single-Layer Graphene: Tight-Binding vs. Effective ModelActa Physica Polonica A, 121, No. 5-6, 1198, 2012
- Graphene Nanoribbons with End- and Side-Contacted ElectrodesActa Physica Polonica A, 121, No. 5-6, 1216, 2012
- Intrinsic contribution to spin Hall and spin Nernst effects in a bilayer grapheneJ. Phys.: Condens. Matter 24, 275302, 2012
- Spin-transfer torque in a thick Neel domain wallPhysical Review B 85, 024416, 2012
- Andreev reflection in transport through a quantum dot coupled to ferromagnetic and superconducting electrodesActa Physica Polonica A 121, 1201, 2012
- Intrinsic spin Hall effect in silicene: transition from spin Hall to normal insulatorPhys. Status Solidi RRL 6, 340, 2012
- Controlling Shot Noise in Double-Barrier Magnetic Tunnel JunctionsPhysical Review Letters 109, 066601, 2012
2011
- Magnetoresistivity of Ce(1-x)La(x)Cu(4)Al compoundsIntermetallics 19, p.433-436 (2011)
- Nonlinear spin Hall effect in GaAs (110) quantum wells,Physical Review B 84, 085326 (2011)
- Current-induced dynamics of composite free layers with antiferromagnetic interlayer exchange coupling,Physical Review B 83, 104422 (2011)
- Magnetization dynamics in a magnetic tunnel junction due to spin transfer torque in the presence of interlayer exchange coupling,IEEE Transactions on Magnetics 47, 1627 (2011)
- Influence of magnetic anisotropy on the Kondo effect and spin-polarized transport through magnetic molecules, adatoms and quantum dots,Physical Review B 84, 035445 (2011)
- Interplay of the Kondo effect and spin-polarized transport in nanoscopic systems with uniaxial magnetic anisotropy,Journal of Applied Physics 109, 07C732 (2011)
- Interplay of the Kondo effect and spin-polarized transport in magnetic molecules, adatoms and quantum dots,Physical Review Letters 106, 126602 (2011)
- Remarks on theoretical modelling of spin-dependent electronic transport in carbon nanotubes and grapheneCent. Eur. J. Phys. 9(2), 369, 2011
- Electronic transport through side-contacted graphene nanoribbons: effects of overlap, aspect ratio and orientationNanotechnology 22, 445201, 2011
- Dark states in transport through triple quantum dots: the role of cotunneling.Physical Review B 83, 195302, 2011
- Spin dephasing and pumping in graphene due to random spin-orbit interaction.Physical Review B 83, 085306, 2011
2010
- Spin-polarized transport in graphene nanoribbons with one paramagnetic lead and one ferromagnetic lead.Semiconductor Science and Technology 25, 085011, 2010
- Tunneling in double barrier junctions with ‘hot spots’.Physical Review Letters 105, 047207, 2010
- Conductance in Co/Al2O3/Si/Al2O3 permalloy with asymmetrically doped barrier.Physical Review B 81, 014404, 2010
- Computational study of microwave oscillations in nonstandard spin valves in the diffusive transport limit.Physical Review B 81, 014408, 2010
- Spin transfer torque and magnetic dynamics in tunnel junctions.Physical Review B 82, 134412, 2010
- Robust impurity-scattering spin Hall effect in a two-dimensional electron gas.Physical Review B 82, 121310 (2010)
- Spin-polarized current and shot noise in a carbon nanotube quantum dot in the Kondo regime.Physical Review B 81, 115327, 2010
- Synchronization of macrospins arranged into a linear chain.Journal of Magnetism and Magnetic Materials 322, 1434 (2010)
- Magnetization reversal by a single pulse of magnetic field or spin-polarized current.Journal of Magnetism and Magnetic Materials 322, 1373 (2010)
- Current-induced magnetic switching of an arbitrary oriented single-molecule magnet in the cotunneling regime.Journal of Magnetism and Magnetic Materials 322, 1265-1268, 2010
- Spin diode behaviour in transport through single-molecule magnets.EPL 89, 18003, 2010
- Spin-dependent transport through SU(4) Kondo dot in the presence of spin-flip processes.Acta Physica Polonica A 118, 955, 2010
- Ab initio study of the edge states of graphene nanoribbons in the presence of electrodes.Acta Physica Polonica A 118, 856, 2010
- Spin-sensitive conductance in magnetically contacted graphene flakes.Acta Physica Polonica A 118, 835, 2010
2009
- Current-induced switchning of a single magnetic molecule with an arbitrary orientation of the magentic easy axis.Solid State Sciences 11, 772-777, 2009
- Switching of molecular magnets.Physica Status Solidi B 246, No. 4, 695-715, 2009
- Negative tunnel magnetoresistance and differential conductance in transport through double quantum dots.Physical Review B 80, 165333 (2009)
- Thermoelectric effects in transport through quantum dots attached to ferromagnetic leads with non-collinear magnetic moments.Physical Review B 80, 194409 (2009)
- Spin Hall effect in a system of Dirac fermions in the honeycomb lattice with intrinsic and Rashba spin-orbit interaction.Phys. Rev. B. 80, No. 15. (2009), 155444
- Spin effects in transport through single-molecule magnets in the sequential and cotunneling regimes.Physical Review B, 79, 224420, 2009
- Spin relaxation and combined resonance in two-dimensional electron systems with spin-orbit disorder.Physical Review B, 80, 081301-1-4, 2009
- Theoretical studies of spin-dependent electronic transport in ferromagnetically contacted graphene flakes.Physical Review B 80, 075433, 2009
- Current-induced dynamics in non-collinear dual spin-valves.Physical Review B 80, 174404 (2009)
- Current-pulse-induced magnetic switching in standard and nonstardand spin-valves: theory and numerical analysis.Physical Review B 79, 144510, 2009
- Ultra-fast ballistic magnetization reversal triggered by a single magnetic field pulse.Journal of Physics D: Applied Physics 42 (2009) 245007
- Transport through a quantum dot subject to spin charge bias.Journal of Magnetism and Magnetic Materials 321, 2414-2420, 2009
- Magnetization dynamice In nanopillars In the diffusivs transport regime: Macrospin versus micromagnetic analysis.Journal of Applied Physics 106, 113909 (2009)
- Spin Hall effect in IV-VI semiconductors.EPL A Journal Exploring the Frontiers of Physics 85, 67004, 2009
- Ab initio analysis of a quantum dot induced by a local external potential in a semiconducting carbon nanotube.Acta Physica Polonica A, Vol. 115, No. 1, 387-389, 2009
- Comparative studies on giant magnetoresistance in carbon nanotubes and graphene nanoribbons with ferromagnetic contacts.Acta Physica Polonica A, Vol. 115, No. 1, 319-321, 2009
- Transport through single-wall carbon nanotubes weakly coupled to external leads.Acta Physica Polonica A, Vol. 115, No. 1, 296-298, 2009
- Kondo effect in carbon nanotube quantum dot in a magnetic field.Acta Physica Polonica A, Vol. 115, No. 1, 293-295, 2009
- Anomalous Hall effect in IV-VI semiconductors.Acta Physica Polonica A, Vol. 115, No. 1, 287-289, 2009
- Current-pulse-induced switching of asymmetric spin valves.Acta Physica Polonica A, Vol. 115, No. 1, 278-280, 2009
- Phono-assisted Kondo resonance in spin-dependent transport through a quantum dot.Acta Physica Polonica A, Vol. 115, No. 1, 272-274, 2009
- Spin torque in double planar tunnel junctions.Acta Physica Polonica A, Vol. 115, No. 1, 269-271, 2009
- Conductance quantization in the melt-spun cubic RCu5 (R = Gd, Ho, Lu) nanowires.Acta Physica Polonica A, Vol. 115, No. 1, 165-167, 2009
- The overlapping muffin-tin approximation.Acta Physica Polonica A, Vol. 115, No. 1, 64-68, 2009
2008
- A model of a tunable quantum dot in a semiconducting carbon nanotube.Semiconductor Science and Technology 23, 085024, 2008
- Anomalous Hall efect in IV-VI magnetic semiconductors.Physical Review B 78, 245208, 2008
- Theoretical prediction of perfect spin filtering at interfaces between close-packed surfaces of Ni or Co and graphite or graphene.Physical Review B 78, 195419, 2008
- Kondo-Dicke resonances in electronic transport through triple quantum dots.Physical Review B 78, 075424, 2008
- Effects of intrinsic spin-relaxation in molecular magnets on current-induced magnetic switchning.Physical Review B 77, 172414, 2008
- Influence of a periodic magnetic field and spin-polarized current on the magnetic dynamics of a monodomain ferromagnet.Physical Review B 78, 054417, 2008
- Transport through single-wall metallic carbon nanotubes in the cotunneling regime.Physical Review B 78, 035422, 2008
- Current-induced dynamics of a monodomain ferromagnet in an external magnetic field applied in easy magnetic plane: macrospin model.Physical Review B 77, 094427, 2008
- Shot noise and tunnel magnetoresistance in multilevel quantum dots: effects of cotunneling.Physical Review B 77, 054434, 2008
- Free-electron model of current-induced spin-transfer torque in magnetic tunnel junctions.Physical Review B 77, 054434, 2008
- Calculating scattering matrices by wave function matching.physica status solidi (b) 245, 623-640, 2008
- Decoherence resonances in carbon nanotubes.Physica E 40, 2614-2617, 2008
- Spin effects in single-electron tunneling.Journal of Physics: Condensed Matter 20, 423202, 2008
- The Kondo effect in quantum dots coupled to ferromagnetic leads with noncollinear magnetizations: effects due to electron – phonon coupling.Journal of Physics: Condensed Matter 20, 255219, 2008
- Dicke-like effect in spin-polarized transport through coupled quantum dots.Journal of Physics: Condensed Matter 20, 125220, 2008
- Current-induced magnetic switching and dynamics in spin valves.Journal of Non-Crystalline Solids 354, 4181-4185, 2008
- Dynamics of current-induced magnetic switchning of a single-molecule magnet.IEEE Transactions on Magnetics Vol. 44, No. 11, 2523-2526, 2008
- Spin diode based on a single-walled carbon nanotube.Applied Physics Letters 92, 003127, 2008
- Theoretical studies of tunnel magnetoresistance and shot noise in a Schottky-Barrier carbon nanotube transistor with ferromagnetic contacts.Acta Physica Polonica A Vol. 113, No. 1, 591-594, 2008
- Electronic transport through a quantum dot coupled to non-collinear ferromagnetic electrodes: the Kondo regime.Acta Physica Polonica A Vol. 113, No. 1, 565-568, 2008
- Boson-induced orbital Kondo effect.Acta Physica Polonica A Vol. 113, No. 1, 549-552, 2008
- Tunnel magnetoresistance in carbon nanotube quantum dot.Acta Physica Polonica A Vol. 113, No. 1, 545-548, 2008
- Thermoelectric effects in carbon nanotube quantum dot in the Kondo regime.Acta Physica Polonica A Vol. 113, No. 2, 645-649, 2008
- Spin torque in semiconductors single planar tunnel junctions.Acta Physica Polonica A Vol. 113, No. 1, 35-38, 2008
- Thermally assisted current-driven dynamics in asymmetric spin valves.Acta Physica Polonica A Vol. 113, No. 1, 31-34, 2008
- Poor man’s scaling and green function analysis of the Kondo anomaly in single-level quantum dots.Acta Physica Polonica A Vol. 113, No. 1, 553-556, 2008
2007
- Graphite and graphene as perfect spin filters.Physical Review Letters 99, 176602-1 do 176602-4, 2007
- Quantum interference and Coulomb correlation effects in spin-polarized transport through two quantum dots.Physical Review B 76, 165432 (2007)
- Theory of shot noise in single-walled metallic carbon nanotubes weakly coupled to nonmagnetic and ferromagnetic leads.Physical Review B 76, 155408-1 do 155408-9, 2007
- Resonant decoherence due to electron-electron interactions in carbon nanotubes.Physical Review B 75, 195422, 2007
- Magnetic switching of a single molecular magnet due to spin-polarized current.Physical Review B 75, 134425, 2007
- Cotunneling through quantum dots coupled to magnetic leads: zero-bias anomaly for noncollinear magnetic configurations.Physical Review B 75, 155308, 2007
- Spin polarized transport through two coupled quantum dots.physica status solidi (b) 244, No 7, 2553-2558 (2007)
- Current-induced switching in spin-valve structures.physica status solidi (b) 244, 2304 (2007)
- Current-induced switching of a single-molecule magnet with an arbitrary oriented easy axis.Materials Science – Poland Vol. 25, No. 4, 1235-1241, 2007
- Modeling a Schottky-barrier carbon nanotube field-effect transistor with ferromagnetic contacts.Nanotechnology 18, 485708-1 do 485708-4, 2007
- Precessional modes due to spin-transfer in spin-valve nanopillars.Materials Science - Poland Vol. 25, No. 2, 571-576, 2007
- Interference and Coulomb correlation effects in spin-polarized transport through coupled quantum dots.Materials Science - Poland Vol. 25, No. 2, 545-552, 2007
- Spin reversal processes in a single molecular magnet between two ferromagnetic leads.Materials Science - Poland Vol. 25, No. 2, 505-511, 2007
- Electronic transport in a ferromagnetic single-electron transistor with non-collinear magnetizations in the co-tunnelling regime.Materials Science - Poland Vol. 25, No. 2, 465-472, 2007
- Current-induced torque in ferromagnetic single-electron devices in the limits of the fast and slow spin relaxation.Materials Science - Poland Vol. 25, No. 2, 453-458, 2007
- Aharonov-Bohm interferometry with the T-shaped capacitively coupled quantum dots in the orbital Kondo regime.Materials Science - Poland Vol. 25, No. 2, 436-439, 2007
- Conductance quantization in magnetic and nonmagnetic metallic nanowires.Materials Science - Poland Vol. 25, No. 2, 305-312, 2007
- Spin polarization and relaxation in a semiconductor with impurity absorption of circularly polarized light.Journal of Physics: Condensed Matter 19, 266205 (2007)
- Transport through two-level quantum dots weakly coupled to ferromagnetic leads.Journal of Physics: Condensed Matter 19, 096208, 2007
- Coherent transport through T-shaped electrostatically coupled quantum dots.Journal of Magnetism and Magnetic Materials 310, 2423-2424, 2007
- Ballistic magnetoresistance in small-size carbon nanotube devices.Journal of Magnetism and Magnetic Materials 310, 2439-2441, 2007
- Spin dependent transport through a carbon nanotube quantum dot in magnetic field.Journal of Alloys and Compounds 442, 379-381, 2007
- Current-induced spin torque on a domain wall in a magnetic nanowireInternational Journal Modern Physics B 21, 1659 (2007)
- Quantum tunneling of magnetization in single molecular magnets coupled to ferromagnetic reservoirs.Europhysics Letters Vol. 78, No. 2, 27003, 2007
- Coherent transport through systems of coupled quantum dots.Acta Physica Polonica 112, 473 (2007)
- Current-driven magnetoresistance oscillations in asymmetric spin valves.Acta Physica Polonica A Vol. 112, No. 6, 1267-1270, 2007
2006
- Theoretical studies of spin-dependent electrical transport through carbon nanotubes.Semiconductor Science and Technology 21, S96-S102, 2006
- Orbital Kondo effect and spin polarized transport through quantum dots.physica status solidi (b) 243, No. 1, 206-209, 2006
- The influence of magnetic configuration on tunneling current in double tunnel junctions with ferromagnetic electrodes.phys. stat. sol. (b) 243, No. 1, 231-234, 2006
- Spin accumulation, spin currents, and torque, in the problem of motion of a sharp domain wall in magnetic nanowires.phys. stat. sol. (b) 243, No. 1, 193-196, 2006
- Torque induced by spin-polarized current in ferromagnetic single-electron transistors.phys. stat. sol. (b) 243, No. 1, 243-246, 2006
- Current-induced spin dynamics in spin-valve structures.phys. stat. sol. (b) 243, No. 1, 219-222, 2006
- Spin transport in disordered single-wall carbon nanotubes contacted to ferromagnetic leads.phys. stat. sol. (b) 243, No. 1, 179-182, 2006
- Giant magnetoresistance effect in quantum nano-scale wires.physica status solidi (b) 243, No. 1, 214-218, 2006
- Current-driven destabilization of both collinear configurations in asymmetric spin valves.Physical Review Letters 96, 207205, 2006
- Tunable conductance of magnetic nanowires with structured domain walls.Physical Review Letters 96, 047208, 2006
- Transmission of correlated electrons through sharp domain walls in magnetic nanowires: a renormalization group approach.Physical Review B, 74, 224429, 2006
- Exchange interaction of magnetic imurities in graphene.Physical Review B, 74, 224438, 2006
- Effect of intrinsic spin relaxation on the spin-dependent cotunneling transport through quantum dots.Physical Review B 73, 205309, 2006
- Negative differential conductance and magnetoresistance oscillations due to spin accumulation in ferromagnetic double-island devices.Physical Review B 73, 033409, 2006
- Current-induced motion of a domain wall in a magnetic nanowire.Physical Review B 74, 054403-1 do054403-12, 2006
- Double dot Kondo spin filter.Physica B 378-380, 953-955, 2006-08-23
- Cotunneling through a magnetic quantum dots coupled to ferromagnetic leads with noncollinear magnetizations.Physica B 378-380, 945-946, 2006
- Influence of intrinsic spin-flip processes on spin-polarized transport through quantum dots in the cotunneling regime.Physica B 378-380, 942-944, 2006
- Kondo effect in quantum dots coupled to ferromagnetic leads with noncollinear magnetizations.Physica B 378-380, 940-941, 2006
- Torque due to spin-polarized current in ferromagnetic single-electron transistors.Materials Science – Poland, Vol. 24, No. 3, 815-820, 2006
- Resonant tunneling through a single level quantum dot attached to ferromagnetic leads with non-collinear magnetizations.Materials Science – Poland, Vol. 24, No. 3, 698-700, 2006
- Transport characteristic of ferromagnetic single-electron transistors with non-collinear magnetizations.Materials Science – Poland, Vol. 24, No. 3, 761-767, 2006
- Electronic transport through carbon nanotubes with ferromagnetic electrodes or in magnetic fields.Materials Science – Poland Vol. 24, No. 3, 649-657, 2006
- Spin and orbital Kondo effect in electrostatically coupled quantum dots.Materials Science – Poland Vol. 24, No. 3, 690-693, 2006
- Single- and double-island ferromagnetic single-electron transistors.Materials Science and Engineering B 126, 275-278, 2006
- Macroscopic description of spin transfer torque.Materials Science and Engineering B 126, 271-274, 2006
- Spin-polarized transport through a single-level quantum dot in the Kondo regime.Journal of Physics: Condensed Matter 18, 2291-2304, 2006
- Influence of interface spin-flip scattering on spin accumulation and spin currents in magnetic multilayers with collinear magnetizations.Journal of Applied Physics 99, 023905, 2006
- Spin dependent tunneling through a quantum dot attached to ferromagnetic electrodes with non-collinear magnetizations.Journal of Alloys and Compounds 423, 264-266, 2006
- Electron transport through nanoscopic spin valves.Journal of Alloys and Compounds 423, 244-247, 2006
- Kondo effect and spin filtering in coupled quantum dots.Journal of Alloys and Compounds 423, 215-219, 2006
- Spin dynamics due to spin-transfer in magnetic spin valves.Journal of Alloys and Compounds 423, 194-196, 2006
- Current-induced dynamics in asymmetric spin valves.Applied Magnetic Letters 89, 223121, 2006
2005
- Spin precession in spin-polarized transport through an interacting quantum dot.physica status solidi (b) 242, No. 2, 2005, 342-346
- Spin-polarized transport through carbon nanotubes.physica status solidi (b) 242, No. 2, 2005, 226-233
- Spin valve effect in electronic transport through quantum dots.physica status solidi ©, No. 12, 2004, 3339-3342
- Tunnel magnetoresistance of quantum dots coupled to ferromagnetic leads in the sequential and cotunneling regimes.Physical Review B 72, 115334-1 do 115334-13, 2005
- Gate-controlled spin splitting in quantum dots with ferromagnetic leads in the Kondo regime.Physical Review B 72, 121302(R)-1 do 121302(R)-4, 2005
- From giant magnetoresistance to current-induced switching by spin transfer.Physical Review B 72, 024426-1 do 024426-12, 2005
- Zero-bias anomaly in cotunneling transport through quantum-dot spin valves.Physical Review B 72, 113301-1 do 113301-4, 2005
- Spin effects in electron tunneling through a quantum dot coupled to noncollineary polarized ferromagnetic leads.Physical Review B 71, 2005, 205307-1 do 20530710
- Spin-dependent transport through a double dot system.Materials Science – Poland, Vol. 22, No. 4, 2004, 513-522
- Influence of interface spin-flip processes on spin accumulation and spin currents in magnetic multilayes.Materials Science – Poland, Vol. 22, No. 4, 2004, 537-544
- Spin-dependent transport in ferromagnetic single-electron transistors with non-collinear magnetizations.Materials Science – Poland, Vol. 22, No. 4, 2004, 461-467
- Quantum dots attached to ferromagnetic leads: possibility of new spintronic devices.Journal of Magnetism and Magnetic Materials 290-291, 209-212, 2005
- Transport through a single discrete level for non-collinear magnetic polarizations of the electron reservoirsJournal of Magnetism and Magnetic Materials 294, 2005, 1-9
- Classical description of current-induced spin-transfer torque in multilayer structures.Journal of Applied Physics 97, 2005, 023902-1 do 023902-6
- Cotunneling through a quantum dot coupled to ferromagnetic leads with noncollinear magnetizations.European Physica Journal B 46, 289-299, 2005
- Non-equilibrium Kondo effect in electronic transport through quantum dots.Czechoslovak Journal of Physics, Vol. 54, 2004, Suppl. D, D615-D618