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相关论文: Temperature dependent magnetic properties of FePt:…

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The two-dimensional layered ferromagnet Fe3GaTe2, composed of a Te-FeI-FeII/Ga-FeI-Te stacking sequence, hosts two inequivalent Fe sites and exhibits a high Curie temperature and strong out-of-plane magneticanisotropy, making it a promising…

材料科学 · 物理学 2026-03-03 Jiaqi Li , Shuyuan Liu , Chongze Wang , Fengzhu Ren , Bing Wang , Jun-Hyung Cho

A detailed magnetization study for the novel FeSe superconductor is carried out to investigate the behavior of the intrinsic magnetic susceptibility $\chi$ in the normal state with temperature and under hydrostatic pressure. The temperature…

The magnetic moments and magnetic anisotropy energy (MAE) of CoRh alloy nanoparticles are determined experimentally and theoretically. Non-trivial correlations between chemical order, magnetic order and MAE are revealed. A remarkable…

Magnetoelectric composites are an important class of multiferroic materials that pave the way towards a new generation of multifunctional devices directly integrable in data storage technology and spintronics. This study focuses on…

A classical spin model derived ab initio for rare-earth-based permanent magnet compounds is presented. Our target compound, NdFe$_{12}$N, is a material that goes beyond today's champion magnet compound Nd$_{2}$Fe$_{14}$B in its intrinsic…

材料科学 · 物理学 2016-09-26 Munehisa Matsumoto , Hisazumi Akai , Yosuke Harashima , Shotaro Doi , Takashi Miyake

The paper reports new results of the 57Fe M\"ossbauer measurements on Fe3PO4O3 powder sample recorded at various temperatures including the point of magnetic phase transition TN ~ 163K. The spectra measured above TN consist of quadrupole…

强关联电子 · 物理学 2018-03-28 A. V. Sobolev , A. A. Akulenko , I. S. Glazkova , D. A. Pankratov , I. A. Presniakov

We present a comprehensive study on anisotropic magnetocaloric porperties of the van der Waals weak-itinerant ferromagnet Fe$_{3-x}$GeTe$_2$ that features gate-tunable room-temperature ferromagnetism in few-layer device. Intrinsic…

强关联电子 · 物理学 2019-09-16 Yu Liu , Jun Li , Jing Tao , Yimei Zhu , C. Petrovic

Few layers Fe$_3$GeTe$_2$ is currently the only atomically thin ferromagnetic metal, and thus has drawn huge attention in the field of two-dimensional (2D) magnetism. In this paper, we perform a systematic first principle study on the…

材料科学 · 物理学 2022-02-01 Ming-Chun Jiang , Guang-Yu Guo

The thermodynamics of a site-diluted ferromagnetic Heisenberg model for spin $S=1/2$ with interaction anisotropy in spin space is investigated. The study is aimed at presenting the magnetocaloric properties of such a model, including the…

统计力学 · 物理学 2013-04-09 Karol Szałowski , Tadeusz Balcerzak , Andrej Bobák

Spin-mediated charge-to-heat current conversion phenomena, i.e., the anomalous Ettingshausen effect (AEE) and the anisotropic magneto-Peltier effect (AMPE), have been investigated in various ferromagnetic Ni-Fe, Ni-Pt, Ni-Pd, and Fe-Pt…

材料科学 · 物理学 2020-04-01 Asuka Miura , Ryo Iguchi , Takeshi Seki , Koki Takanashi , Ken-ichi Uchida

Atomistic spin model simulations are immensely useful in determining temperature dependent magnetic prop- erties, but are known to give the incorrect dependence of the magnetization on temperature compared to exper- iment owing to their…

介观与纳米尺度物理 · 物理学 2015-05-12 R. F. L. Evans , U. Atxitia , R. W. Chantrell

The finite-temperature magnetic properties of Fe$_x$Pd$_{1-x}$ and Co$_x$Pt$_{1-x}$ alloys have been investigated. It is shown that the temperature-dependent magnetic behaviour of alloys, composed of originally magnetic and non-magnetic…

材料科学 · 物理学 2015-05-19 S. Polesya , S. Mankovsky , O. Sipr , and W. Meindl , C. Strunk , H. Ebert

We have explored, computationally and experimentally, the magnetic properties of \fecob{} alloys. Calculations provide a good agreement with experiment in terms of the saturation magnetization and the magnetocrystalline anisotropy energy…

The determination of Lande's g-factor and the damping constant is central to extracting crucial information about the spin-spin and spin-orbit interactions in magnetically ordered systems. In insulating compounds based on 3d elements, the…

材料科学 · 物理学 2025-02-04 Alapan Bera , Nirmalya Jana , Amit Agarwal , Soumik Mukhopadhyay

In 5d transition metal oxides, novel properties arise from the interplay of electron correlations and spin--orbit interactions. Na4IrO4, where 5d transition-metal Ir atom occupies the center of the square-planar coordination environment, is…

材料科学 · 物理学 2017-12-01 Di Wang , Feng Tang , Yongping Du , Xiangang Wan

We show how temperature-induced disorder can be combined in a direct way with first-principles scattering theory to study diffusive transport in real materials. Excellent (good) agreement with experiment is found for the resistivity of Cu,…

We investigate the effects of magnetic inhomogeneities and thermal fluctuations on the magnetic properties of a rare earth intermetallic compound, Nd$_2$Fe$_{14}$B. The constrained Monte Carlo method is applied to a Nd$_2$Fe$_{14}$B bulk…

Today, further downscaling of mobile electronic devices poses serious problems, such as energy consumption and local heat dissipation. In this context, spin wave majority gates made of very thin ferromagnetic films may offer a viable…

统计力学 · 物理学 2018-07-04 Joren Vanherck , Bart Sorée , Wim Magnus

We perform fully relativistic first principles calculations of the exchange interactions and the magnetocrystalline anisotropy energy (MAE) in an Fe/FePt/Fe sandwich system in order to elucidate how the presence of Fe/FePt (soft/hard…

材料科学 · 物理学 2013-11-22 C J Aas , P J Hasnip , R Cuadrado , E M Plotnikova , L Szunyogh , L Udvardi , R W Chantrell

We have studied the magnetic behavior of dextran-coated magnetite (Fe$_3$O$_4$) nanoparticles with median particle size $\left<d\right>=8$ $nm$. Magnetization curves and in-field M\"ossbauer spectroscopy measurements showed that the…

材料科学 · 物理学 2007-05-23 E. Lima , A. L. Brandl , A. D. Arelaro , G. F. Goya