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SEMINARIUM

Zakładów Naukowych ZN4, ZN7, ZN8

Dnia: 15.12.2025 roku (poniedziałek)
o godzinie 10:00 w auli Instytutu Fizyki Molekularnej Polskiej Akademii Nauk w Poznaniu

referat pt.:

Makroskopowe efekty kwantowe – Nagroda Nobla 2025 oraz nasze badania

wygłosi

prof. dr hab. Jan Martinek

Instytut Fizyki Molekularnej PAN

Zobacz spis seminariów z 2025 roku

Plan zajęć (UAM)

Aktualnie nie są prowadzone zajęcia w ramach współpracy z Uniwersytetem im. Adama Mickiewicza.

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Informacje archiwalne

Finite-size scaling of the heat current variance at the phase transition point in Curie-Weiss model attached to two heat baths.

K. Ptaszyński, M. Esposito
Critical heat current fluctuations in Curie-Weiss model in and out of equilibrium
Physical Review E 111, 034125 (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)
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)
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)
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)
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)
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)
Ferrimagnetic Tb/Co films patterned with Ga+ ions prove to be good substrates for magnetophoresis of superparamagnetic particles.

M. Urbaniak, D. Kiphart, M. Matczak, F. Stobiecki, G.D. Chaves-O’Flynn, P. Kuświk
Ferrimagnetic Tb/Co multilayers patterned by ion bombardment as substrates for magnetophoresis
Sci Rep 14, 23771 (2024)