中文
相关论文

相关论文: Critical behavior in the Mn$_{5}$Ge$_{3}$ ferromag…

200 篇论文

Layered Ising metamagnets are antiferromagnetic (AF) materials consisting of monolayer Ising ferromagnets coupled to each other via interlayer AF interactions. They exhibit rich magnetic phase diagrams, featuring tricritical and critical…

介观与纳米尺度物理 · 物理学 2026-01-29 Feng Liu , Jiayong Xiao , Shengwei Jiang , Kin Fai Mak , Jie Shan

Critical phenomenon at the phase transition reveals the universal and long-distance properties of the criticality. We study the ferromagnetic criticality of the pyrochlore magnet Lu$_2$V$_2$O$_7$ at the ferromagnetic transition…

强关联电子 · 物理学 2019-10-22 N. Su , F. -Y. Li , Y. Y. Jiao , Z. Y. Liu , J. P. Sun , B. S. Wang , Y. Sui , H. D. Zhou , G. Chen , J. -G. Cheng

We investigate the low-temperature critical behavior of the three dimensional random-field Ising ferromagnet. By a scaling analysis we find that in the limit of temperature $T \to 0$ the usual scaling relations have to be modified as far as…

无序系统与神经网络 · 物理学 2015-06-25 U. Nowak , K. D. Usadel , J. Esser

We investigate the magnetic behavior and critical exponents of quaternary CoFeV$_{0.8}$Mn$_{0.2}$Si Heusler alloy to understand the interactions across the Curie temperature ($T_{\rm C}$). The Rietveld refinement of the x-ray diffraction…

材料科学 · 物理学 2023-10-04 Guru Dutt Gupt , P. D. Babu , R. S. Dhaka

We investigate the dynamical critical behavior of the two-dimensional three-state Potts model with single spin-flip dynamics in equilibrium. We focus on the mean-squared deviation of the magnetization $M$ (MSD$_{M}$) as a function of time,…

统计力学 · 物理学 2024-07-24 Erol Vatansever , Gerard T. Barkema , Nikolaos G. Fytas

Antiferromagnetic Ising spins on the scale-free Barabasi-Albert network are studied via the Monte Carlo method. Using the replica exchange algorithm, we calculate the temperature dependence of various physical quantities of interest…

无序系统与神经网络 · 物理学 2009-11-11 M. Bartolozzi , T. Surungan , D. B. Leinweber , A. G. Williams

We calculate the Curie temperature of layered ferromagnets, chromium tri-iodide (CrI3), chromium tri-bromide (CrBr3), chromium germanium tri-telluride (CrGeTe3), and the Neel temperature of a layered anti-ferromagnet iron di-chloride…

介观与纳米尺度物理 · 物理学 2021-01-27 Sabyasachi Tiwari , Maarten L Van de Put , Bart Soree , William G. Vandenberghe

We study the phase diagram and critical properties of quantum Ising chains with long-range ferromagnetic interactions decaying in a power-law fashion with exponent $\alpha$, in regimes of direct interest for current trapped ion experiments.…

统计力学 · 物理学 2021-10-13 E. Gonzalez-Lazo , M. Heyl , M. Dalmonte , A. Angelone

Quantum-critical behavior of the itinerant electron antiferromagnet (V0.9Ti0.1)2O3 has been studied by single-crystal neutron scattering. By directly observing antiferromagnetic spin fluctuations in the paramagnetic phase, we have shown…

Magnetization isotherms of the 5f-electron ferromagnets URhGa, UCoGa and UCo0.98Ru0.02Al were measured at temperatures in the vicinity of their Curie temperature in order to investigate the critical behavior near the ferromagnetic phase…

强关联电子 · 物理学 2021-01-05 Petr Opletal , Vladimír Sechovský , Jan Prokleška

In this paper we present and discuss results of Monte Carlo numerical simulations of the two-dimensional Ising ferromagnet in contact with a heat bath that intrinsically has a thermal gradient. The extremes of the magnet are at temperatures…

统计力学 · 物理学 2015-06-11 Juan Muglia , Ezequiel V. Albano

We report thermal expansion and heat capacity studies on Li$_2$FeSiO$_4$ single crystals which enable us to investigate the critical behavior in the magnetically quasi-two-dimensional (2D) material. Pronounced $\lambda$-shaped anomalies at…

Cold neutron triple-axis measurements have been used to investigate the nature of the long-wavelength spin dynamics in strongly-doped La$_{1-x}$Sr$_{x}$MnO$_3$ single crystals with $x$=0.2 and 0.3. Both systems behave like isotropic…

强关联电子 · 物理学 2009-10-30 L. Vasiliu-Doloc , J. W. Lynn , Y. M. Mukovskii , A. A. Arsenov , D. A. Shulyatev

In this study, critical behavior of low dimensional magnetic systems as cyano-bridged Tb(III)-Cr(III) bimetallic assembly was investigated with the mixed spin $3$- spin $3/2$ Ising model. The mixed spin Ising model is simulated with…

计算物理 · 物理学 2016-04-04 Aycan Özkan , Bülent Kutlu

We study a bilayer Ising spin system consisting of antiferromagnetic (AF) and ferromagnetic (FM) triangular planes, coupled by ferromagnetic exchange interaction, by standard Monte Carlo and parallel tempering methods. The AF/FM bilayer is…

统计力学 · 物理学 2016-09-01 M. Žukovič , A. Bobák

In extensive Monte Carlo simulations the phase transition of the random field Ising model in three dimensions is investigated. The values of the critical exponents are determined via finite size scaling. For a Gaussian distribution of the…

凝聚态物理 · 物理学 2009-10-28 Heiko Rieger

The celebrated analogy between the pressure-temperature phase diagram of a liquid-gas system and the field-temperature phase diagram of ferromagnet has long been a cornerstone for understanding universality of phase transitions and critical…

强关联电子 · 物理学 2026-04-13 Xinyang Liu , Enze Lv , Xueling Cui , Han Ge , Fangyuan Song , Zhaoming Tian , Gang Su , Kan Zhao , Junsen Xiang , Peijie Sun , Wei Li

Systematically magnetic and magnetothermal measurements at temperatures down to 2 K and magnetic fields up to 13.5 Tesla for Gd(OH)3 Single Crystal Nanowires - Quasi-1D Large Spin (S = -7/2) Chain Antiferromagnet have been conducted. We…

材料科学 · 物理学 2012-07-16 R. Zeng , C. F. Zhang , J. C. Debnath , P. Shamba , J. L. Wang , Z. X. Chen , Z. P. Guo , S. X. Dou

Universality classes encompass the analogous thermodynamic behavior of unlike physical systems, at different spatial dimensions $d$, in the vicinity of their critical point. Critical exponents define these classes, with the Ising model…

统计力学 · 物理学 2026-02-06 D. Olascoaga-Rodríguez , F. Sastre , V. Romero-Rochín

Resistivity measurements were performed for the itinerant Ising-type ferromagnet URhAl at temperatures down to 40 mK under high pressure up to 7.5 GPa, using single crystals. We found that the critical pressure of the Curie temperature…