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We study the relation between the mean effective surface temperature T_s and the internal temperature T_b for magnetic neutron stars, assuming that the magnetic field near the surface has a presumably small-scale structure. The…

Astrophysics · Physics 2007-05-23 A. Y. Potekhin , V. Urpin , G. Chabrier

The temperature dependence of the solid-liquid interfacial free energy, {\gamma}, is investigated for Al and Ni at the undercooled temperature regime based on a recently developed persistent-embryo method. The atomistic description of the…

Chemical Physics · Physics 2018-11-06 Yang Sun , Feng Zhang , Huajing Song , Mikhail I. Mendelev , Cai-Zhuang Wang , Kai-Ming Ho

We investigate the thickness and temperature dependence of a series of Ni0:8Fe0:2/Ir0:2Mn0:8 bilayer samples with varying thickness ratio of the ferromagnet/antiferromagnet (tFM/tAFM) in order to explore the exchange coupling strengths in…

Mesoscale and Nanoscale Physics · Physics 2016-08-02 H. Reichlova , V. Novak , Y. Kurosaki , M. Yamada , H. Yamamoto , A. Nishide , J. Hayakawa , H. Takahashi , M. Marysko , J. Wunderlich , X. Marti , T. Jungwirth

Laser pulses with a duration of the order of femtoseconds lead to a strong excitation, heating and potentially to ablation of the irradiated material. During the time of strong excitation, the interaction of the atoms and thus the material…

Materials Science · Physics 2025-07-01 Simon Kümmel , Johannes Roth

The physical properties of magnetic nanoparticles have been investigated with focus on the influence of dipolar interparticle interaction. For weakly coupled nanoparticles, thermodynamic perturbation theory is employed to derive analytical…

Materials Science · Physics 2016-08-31 Petra E. Jönsson

The experimental critical temperature of systems of nanoparticles superconducting (Pb) and normal (Ag, Cu and Al) with a random distribution and sizes less than their respective coherence lengths, is governed by proximity effect as the…

Superconductivity · Physics 2023-05-15 G. A. Ummarino

Density functional theory has demonstrated remarkable predictive power in calculating magnetic properties at zero temperature. At finite temperatures, thermally excited phonons may affect magnetism. Efficient ab-initio methods to calculate…

Strongly Correlated Electrons · Physics 2025-10-21 Ravi Kaushik , Ryota Ono , Sergey Artyukhin

A precision measurement of the photoionization of pure sodium and potassium nanoparticles isolated in a beam enabled an accurate determination of their work functions as a function of temperature. In addition to resolving and quantifying…

Mesoscale and Nanoscale Physics · Physics 2026-02-18 Abdelrahman O. Haridy , Atef A. Sheekhoon , Vitaly V. Kresin

We report on the measurement of the heat capacity for an optically-trapped, strongly-interacting Fermi gas of atoms. In the experiments, a precise input of energy to the gas is followed by single-parameter thermometry. The thermometry…

Other Condensed Matter · Physics 2007-05-23 J. Kinast , A. Turlapov , J. E. Thomas

Particles are heated efficiently through energy conversion processes such as shocks and magnetic reconnection in collisionless plasma environments. While empirical scaling laws for the temperature increase have been obtained, the precise…

Magnetic proximity effect between topological insulator (TI) and ferromagnetic insulator (FMI) is considered to have great potential in spintronics. However, a complete determination of interfacial magnetic structure has been highly…

Mesoscale and Nanoscale Physics · Physics 2015-04-13 Mingda Li , Wenping Cui , Jin Yu , Zuyang Dai , Zhe Wang , Ferhat Katmis , Wanlin Guo , Jagadeesh Moodera

We study the tunneling magneto thermo power (TMTP) in CoFeB/MgO/CoFeB magnetic tunnel junction nanopillars. Thermal gradients across the junctions are generated by a micropatterned electric heater line. Thermo power voltages up to a few…

Materials Science · Physics 2012-09-13 N. Liebing , S. Serrano-Guisan , K. Rott , G. Reiss , J. Langer , B. Ocker , H. W. Schumacher

We report detailed studies on non-equilibrium magnetic behavior of antiferromagnetic Co_3O_4 nanoparticles. Temperature and field dependence of magnetization, wait time dependence of magnetic relaxation (aging), memory effects and…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 Vijay Bisht , K. P. Rajeev

Characteristic temperatures in ferromagnetic - antiferromagnetic exchange biased systems are analyzed. In addition to usual blocking temperature of exchange bias $T_{B}$, and the N\'{e}el temperature of an antiferromagnet $T_{N}$, the…

Materials Science · Physics 2009-11-11 Alexey N. Dobrynin , Ruslan Prozorov

The static path approximation to the path integral representation of partition function provides a natural microscopic basis to deal with thermal fluctuations around mean field configurations. Using this approach for one-dimensional…

Nuclear Theory · Physics 2009-10-22 B. K. Agrawal , A. Ansari

The thermal structure of neutron stars with magnetized envelopes is studied using modern physics input. The relation between the internal (T_i) and local surface temperatures is calculated and fitted by analytic expressions for magnetic…

Astrophysics · Physics 2007-05-23 A. Y. Potekhin , D. G. Yakovlev

This paper presents a novel method for estimating the temperature of magnetic nanoparticles (MNPs) based on AC magnetization harmonics of MNPs dominated by Brownian relaxation. The difference in the AC magnetization response and…

Cryogenic microsystems that utilize different 3D integration techniques are being actively developed, e.g., for the needs of quantum technologies. 3D integration can introduce opportunities and challenges to the thermal management of low…

Spinel Fe3O4 nanoparticles have been produced through ball milling in methyl-alcohol (CH3OH), aiming to obtain samples with similar average particle sizes <d> and different interparticle interactions. Three samples having Fe3O4/CH3(OH) mass…

Materials Science · Physics 2011-03-24 Gerardo F. Goya

Magnetic nanowires are critical components in fields such as data storage and spintronics, where precise control of their magnetic properties is essential for device optimization. In particular, the behavior of isolated nanowires is often…

Mesoscale and Nanoscale Physics · Physics 2025-10-30 Evelyn A. Escudero Bruna , Federico Romá , Fernando Meneses , Paula. G. Bercoff , Moira I. Dolz