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The ferromagnetic phase (FMP) of a uniaxial magnet with the easy-plane single-ion anisotropy (SIA) and the anisotropic biquadra\-tic exchange interaction (BQEI) has been studied. The case $S=1$ for the site spin $S$ has been considered.…

其他凝聚态物理 · 物理学 2010-07-07 Igor P. Shapovalov

The influence of an asymmetric in-plane magnetic anisotropy on the thermally activated spin current is studied theoretically for two different systems; (i) the system consisting of a ferromagnetic insulator in a direct contact with a…

介观与纳米尺度物理 · 物理学 2015-12-09 L. Chotorlishvili , Z. Toklikishvili , S. R. Etesami , V. K. Dugaev , J. Barnas , J. Berakdar

We investigate the coupling of spin and thermal currents as a means to rise the thermoelectric efficiency of nanoscale graphene devices. We consider nanostructures composed of overlapping graphene nanoribbons with ferromagnetic contacts in…

介观与纳米尺度物理 · 物理学 2017-11-22 Leonor Chico , P. A. Orellana , L. Rosales , M. Pacheco

The charge-to-spin conversion provides an efficient way to manipulate the magnetization by electrical means. In this work, we report on a study on the anisotropic nonrelativistic charge-to-spin conversion response to the current direction…

其他凝聚态物理 · 物理学 2025-12-10 Mingbo Dou , Xianjie Wang , L. L. Tao

The Heusler compounds Mn$_2$TiZ (Z = Al, Ga, In, Si, Ge, Sn, P, As, Sb) are of large interest due to their potential ferrimagnetic properties and high spin polarization. Here, we present calculations of the structural and magnetic…

材料科学 · 物理学 2011-01-05 Markus Meinert , Jan-Michael Schmalhorst , Günter Reiss

The discoveries of two-dimensional ferromagnetism and magnetic semiconductors highly enrich the magnetic material family for constructing spin-based electronic devices but with an acknowledged challenge that the Curie temperature (Tc) is…

The Fe$_5$PB$_2$ compound offers tunable magnetic properties via the possibility of various combinations of substitutions on the Fe and P-sites. Here, we present a combined computational and experimental study of the magnetic properties of…

Pt ultrathin films on ferromagnetic insulators have been widely studied for spintronics applications, and magnetic moments of interface Pt atoms were considered to be ferromagnetically ordered due to a magnetic proximity effect (MPE). An…

材料科学 · 物理学 2022-11-01 Leon Sakakibara , Yumiko Katayama , Tomohiro Koyama , Daichi Chiba , Kazunori Ueno

Altermagnets, a class of unconventional antiferromagnets where antiparallel spins are connected by combined rotational and translational symmetries, have recently emerged as promising candidates for spintronic applications, as they can…

In two-dimensional (2D) magnetic systems, large magnetic anisotropy is needed to stabilize the magnetic order according to Mermin-Wagner theorem. Based on density functional theory (DFT) calculations, we propose that the magnetic…

材料科学 · 物理学 2020-11-04 Xuejuan-Dong , Jingyang-You , Zheng Zhang , Bo Gu , Gang Su

We report here sign reversal and tunability of exchange bias in AuFe cosputtered films of thickness about 63 nm. As deposited film exhibits exchange bias effect at room temperature without external triggering field and its magnitude…

Altermagnets (AMs) - magnetic materials that have spin-split bandstructure with zero net spin polarization can be classified as weak or strong depending upon the strength of altermagnetic term in the Hamiltonian. We theoretically…

介观与纳米尺度物理 · 物理学 2026-02-18 Shubham Ghadigaonkar , Sachchidanand Das , Abhiram Soori

Coupling between charge and spin, and magnetoelectric effects more generally, have been an area of great interest for several years, with the sought-after ability to control magnetic degrees of freedom via charge currents serving as an…

强关联电子 · 物理学 2019-08-21 Geremia Massarelli , Bryce Wu , Arun Paramekanti

Magnetization switching using spin-orbit torque offers a promising route to developing non-volatile memory technologies. The prerequisite, however, is the charge-to-spin current conversion, which has been achieved traditionally by…

材料科学 · 物理学 2023-04-07 Saikat Das , Satoshi Sugimoto , Varun Kumar Kushwaha , Yusuke Kozuka , Shinya Kasai

We report a longitudinal spin Seebeck effect (SSE) study in epitaxially grown FeF2(110) antiferromagnetic (AFM) thin films with strong uniaxial anisotropy over the temperature range of 3.8 - 250 K. Both the magnetic field- and…

材料科学 · 物理学 2019-05-14 Junxue Li , Zhong Shi , Victor H. Ortiz , Mohammed Aldosary , Cliff Chen , Vivek Aji , Peng Wei , Jing Shi

The recent advent of a new class of magnetic material named as {\it altermagnet} (AM), characterized by a combination of momentum-dependent spin splitting with zero net magnetization, has opened up promising prospects for spintronic…

超导电性 · 物理学 2026-03-12 Debika Debnath , Arijit Saha , Paramita Dutta

Half-metallic Heusler alloys are attracting considerable attention because of their unique half-metallic band structures which exhibit high spin polarization and yield huge magnetoresistance ratios. Besides serving as ferromagnetic…

Ultrathin 3d-4f synthetic ferrimagnets with perpendicular magnetic anisotropy (PMA) exhibit a range of intriguing magnetic phenomena, including all-optical switching of magnetization (AOS), fast current-induced domain wall motion (CIDWM),…

We investigate the dynamics of Fe adatoms and dimers deposited on the Cu(111) metallic surface in the presence of spin-orbit coupling, within time-dependent density functional theory. The \textit{ab initio} results provide…

介观与纳米尺度物理 · 物理学 2017-10-03 Filipe S. M. Guimarães , Manuel dos Santos Dias , Benedikt Schweflinghaus , Samir Lounis

We present analytic expressions for the temperature dependent magnetization and magnon dispersion relation of the antiferromagnetic (AFM) EuTe and the ferromagnetic (FM) EuO. These bulk semiconductors represent concentrated spin systems for…

材料科学 · 物理学 2011-03-10 J. Achleitner