Seminaria

Wydarzenie w dniu 11.12.2025:

SEMINARIUM

Zakładow Naukowych ZN1, ZN6

Dnia: 11.12.2025 roku (czwartek)
o godzinie 09:30 w sali 227

referat pt.:

Kwantowy punkt krytyczny a rzeczywista dynamika spinowa w metalicznym ferromagnetyku FeGa _3-x Ge _x(x = 0.0 – 0.16):
zastosowanie modeli Cole-Cole i Havriliak-Negami

wygłosi

dr Magdalena Wencka

Instytut Fizyki Molekularnej PAN

The phase transitions in three compounds based on quinuclidinium involve distinct reorientation of Q cations and reorganization of hydrogen bonds for each compound.

E. Jach, D.A. Kowalska, M. Trzebiatowska, W. Medycki, A. Ostrowski, W. Bednarski, M.A. Gusowski, P. Staniorowski, A. Bartosiewicz, U. Dieu, A. Ciżman
Structural Diversity and Stability of Organic−Inorganic Hybrid Quinuclidine-Based Metal Bromides
Inorganic Chemistry, 64, 15, 7422−743 (2025)
Effects of coupling between electrons and intramolecular vibrations (vibronic effects) in the IR spectra of (EDT-TTF-I₂)₂TCNQF_n (n = 0, 1, 2) donor-acceptor complexes

A. Frąckowiak, R. Świetlik, I. Olejniczak, O. Jeannin, M. Fourmigué
Electron–molecular vibration coupling in trimerized isostructural mixed-stack complexes (EDT-TTF-I₂)₂TCNQF_n (n=0, 1, 2)
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Volume 329 (2025)
Ion bombardment creates easy diffusion paths which results in preferential oxidation of Tb, shifting compensation point and spin reorientation transition to higher Tb concentrations.

D. Kiphart, M. Krupiński, M. Mitura-Nowak, P.P. Michałowski, M. Kowacz, M. Schmidt, F. Stobiecki, G.D. Chaves-O’Flynn, P. Kuświk
Origin of ion bombardment induced Tb oxidation in Tb/Co multilayers
Applied Surface Science Vol. 685, 15 March 2025, 162090 (2025)
The energy-dependent relaxation times of electrons and holes in Bi-Sb alloys provide critical insights for optimizing thermoelectric performance and represent a significant step toward high-efficiency p-type devices.

R. Orenstein, K Ciesielski, K. Synoradzki, J. Qu, F.A. Bipasha, L.C. Gomes, J.M. Adamczyk, S. Berger, E. Ertekin, E.S. Toberer
Complex thermoelectric transport in Bi-Sb alloys
Applied Phyics. Review 12, 011409 (2025)
Nonequilibrium responses determine the current covariance in Coulomb-coupled quantum dots.

T. Aslyamov, K. Ptaszyński, M. Esposito
Nonequilibrium Fluctuation-Response Relations: From Identities to Bounds
Physical Review Letter 134, 157101 (2025)
Quenched-in disorder is responsible for the emergence of ferromagnetism in Ce(Fe_0.9Co_0.1)₂ compound. AFM and FM components are visible at low temperatures.

A. Musiał, M. Pugaczowa-Michalska, N. Lindner, Z. Śniadecki
Emergence of Ferromagnetic State Due to Structural Disorder in Pseudo-binary Ce(Fe_0.9Co_0.1)₂ Compound
Metallurgical and Materials Transactions A Volume 56, Issue 6 (2025)
Upstream and downstream concentrations of ³ $He$ He as a function of the filtration time. (a) upstream concentration for YBCO-123 as compared to MWCNTs at 55 mW heater power. (b) upstream and downstream ³ $He$ He concentrations measured simultaneously, black arrows mark the appearance of the lambda transition and switching on the heater to drive the fountain effect. Insert shows the mass spectrum with additional arrows indicating the ³ $He$ He and ⁴He $^{4} He$ concentrations.

W. Kempiński, P. Banat, M. Kempiński, Z. Trybuła, J. Niechciał, M. Chorowski, J. Poliński, K. Chołast
When superfluidity meets superconductivity in the extraction of 3He isotope from liquid helium
Scientific Reports 15, 22822 (2025)
Nonanalytic term of the Landau functional determines the Binder cumulant of magnetization in nonequilibrium Curie-Weiss model.

K. Ptaszyński, M. Esposito
Nonanalytic Landau functionals shaping the finite-size scaling of fluctuations and response functions in and out of equilibrium
Physical Review E 111, 044142 (2025)

Więcej research highlights...

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Najbliższe seminaria:

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Program Operacyjny Wiedza Edukacja Rozwój
Środowiskowe interdyscyplinarne studia doktoranckie w zakresie nanotechnologii
INNOTECH - In-Tech
PIHe3

Instytut Fizyki Molekularnej
Polskiej Akademii Nauk
ul. Mariana Smoluchowskiego 17
60-179 Poznań

tel.: 61 86 95 100
fax: 61 86 84 524
e-mail: office@ifmpan.poznan.pl

NIP: 777-00-20-870

S. Vrtnik, P. Koželj, M. Wencka, K. Bader, J. Petrovi´c, J. Luzar, P. Mihor, A. Jelen, P. Gille, J. Dolinšek
Spin glass effects and nonexistence of a ferromagnetic quantum critical point in the compositionally tuned FeGa_3−xGe_x metallic quantum ferromagnets (x=0.0−0.16)
Physical Review B 112, 104420 (2025)
Editors' Suggestion
M. Sawińska, A. Frąckowiak, I. Olejniczak, T. Runka, S. Priya, M. Dressel, F. Pop, N. Avarvari
Charge order and metal-insulator transition in the chiral molecular conductors (DM-EDT-TTF)₂X(X = ClO₄,ReO₄)
Physical Review B112, 085125 (2025)
M. Urbaniak, D. Kiphart, M. Matczak, P. Kuświk
Reconfigurable ferrimagnetic Tb/Co based substrates for magnetophoresis
Journal of Magnetism and Magnetic Materials, 629 (2025)
D. Knozowski, A Kędzierska-Sar, R. Ranecki, P. Kuświk, M. Fronczak, S. Gierlotka, S. Arabasz, A. Aligayev, U. Jabbarli, F.J. Dominguez–Gutierrez, M. Gmurek
Plasma–enhanced chemical vapor deposition of Co₃O₄ thin films as a new approach for improving oxygen evolution activity
Catalysis Today, 458 (2025)
A.V. Achuthan, S. Janardhanan, P. Kuświk, A. Trzaskowska
Influence of effective thickness in elastic anisotropy and surface acoustic wave propagation in CoFeB/Au multilayer
Scientific Reports, 15 (2025)
M. Falkowski, J. Goraus, A.M. Strydom
Ground state properties of the moderate heavy-fermion Kondo lattice Ce₂⁢Rh₃⁢Ga₉: Observation of a departure from Fermi-liquid type behavior
Phys. Rev. B 112, 075122 (2025)
D. Kiphart, G.D. Chaves O'Flynn, F. Stobiecki, Ł. Frąckowiak, M. Matczak, P. Kuświk
Tailoring Ferrimagnetic Properties Using Proximity Effects in Co/Tb-Co Bilayers
Advanced Materials Interfaces (2025)
F. Pop, N. Mroweh, P. Auban-Senzier, G.L.J.A. Rikken, D. Hirobe, H.M. Yamamoto, A. Frąckowiak, I. Olejniczak, S. Pillet, E. Bendeif, P. Alemany, E. Canadell, N. Avarvari
Chiral Metallic DM-EDT-TTF Radical Cation Salts: Anion Size-Dependent Structural and Electronic Transitions, Charge Ordering, and Chirality-Induced Spin Selectivity
Journal of the American Chemical Society, 147, 31 (2025)
K. Ptaszyński, M. Esposito
Dissipation Enables Robust Extensive Scaling of Multipartite Correlations
Phys. Rev. Lett. 135, 057401 (2025)
W. Kempiński, P. Banat, M. Kempiński, Z. Trybuła, J. Niechciał, M. Chorowski, J. Poliński, K. Chołast
When superfluidity meets superconductivity in the extraction of 3He isotope from liquid helium
Scientific Reports 15, 22822 (2025)
A. Musiał, M. Pugaczowa-Michalska, N. Lindner, Z. Śniadecki
Emergence of Ferromagnetic State Due to Structural Disorder in Pseudo-binary Ce(Fe_0.9Co_0.1)₂ Compound
Metallurgical and Materials Transactions A Volume 56, Issue 6 (2025)
I. Jankowska, M. Bielejewski, P. Ławniczak, R. Pankiewicz, J. Brus, J. Tritt-Goc
Cellulose nanofibers vs. cellulose nanocrystals: a comparative study on their influence on the properties of imidazole-doped proton-conducting nanocomposites
Cellulose, Volume 32 (2025)
K. Ptaszyński, M. Esposito
Nonanalytic Landau functionals shaping the finite-size scaling of fluctuations and response functions in and out of equilibrium
Physical Review E 111, 044142 (2025)
A.R. Perayil, P. Kuświk, M. Urbaniak, F. Stobiecki, S. Akhundzada, A. Ehresmann, D. de las Heras, T.M. Fischer
Topological sorting of magnetic colloidal bipeds
Soft Matter, 21, 2716,(2025)
T. Aslyamov, K. Ptaszyński, M. Esposito
Nonequilibrium Fluctuation-Response Relations: From Identities to Bounds
Physical Review Letter 134, 157101,(2025)
E. Jach, D.A. Kowalska, M. Trzebiatowska, W. Medycki, A. Ostrowski, W. Bednarski, M.A. Gusowski, P. Staniorowski, A. Bartosiewicz, U. Dieu, A. Ciżman
Structural Diversity and Stability of Organic−Inorganic Hybrid Quinuclidine-Based Metal Bromides
Inorganic Chemistry, 64, 15, 7422−743 (2025)

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