中文
相关论文

相关论文: Collective spin dynamics under dissipative spin Ha…

200 篇论文

The influence of dynamic interlayer interactions on the spin torque driven and damped excitations are illustrated for a three layer macrospin model system that corresponds to a standard spin-torque oscillator. The free layer and a synthetic…

介观与纳米尺度物理 · 物理学 2017-04-05 M. Romera , E. Monteblanco , F. Garcia-Sanchez , B. Delaet , L. D. Buda-Prejbeanu , U. Ebels

Based on Monte-Carlo simulations, the stable magnetization configurations of an antiferromagnet on a quasiperiodic tiling are derived theoretically. The exchange coupling is assumed to decrease exponentially with the distance between…

无序系统与神经网络 · 物理学 2007-05-23 E. Y. Vedmedenko , U. Grimm , R. Wiesendanger

Exploring structural order in disordered systems including liquids and glasses is an intriguing but challenging issue in condensed matter physics. Here we construct a new parameter based on the angular distribution function of particles and…

软凝聚态物质 · 物理学 2018-06-11 Xiunan Yang , Wei-Hua Wang , Ke Chen

We develop a phenomenological hydrodynamic theory of coherent magnetic precession coupled to electric currents. Exchange interaction between electron spin and collective magnetic texture produces two reciprocal effects: spin-transfer torque…

介观与纳米尺度物理 · 物理学 2009-11-13 Yaroslav Tserkovnyak , Clement H. Wong

A theoretical framework is proposed for the spin-current driven synchronized self-oscillations in ferromagnets in the spin Hall geometry. The spin current generated by the spin Hall effect in a bottom nonmagnetic heavy metal excites a…

介观与纳米尺度物理 · 物理学 2018-09-17 Tomohiro Taniguchi

Current-driven magnetization dynamics of single ferromagnets in heavy metal/ferromagnet bilayers has been recently realized. In this work, spin torque induced by so-called Rashba spin-orbit coupling and spin Hall effect are considered…

介观与纳米尺度物理 · 物理学 2012-04-24 Aurelien Manchon

When spin polarised electrons flow through a magnetic texture a transfer torque is generated. We examine the effect of this torque on skyrmions and skyrmion bags, skyrmionic structures of arbitrary integer topological degree, in thin…

材料科学 · 物理学 2021-04-07 Charles Kind , David Foster

We demonstrate that spin-orbit coupled electrons in a magnetically doped system exert a spin torque on the local magnetization, without a flowing current, when the chemical potential is modulated in a magnetic field. The spin torque is…

介观与纳米尺度物理 · 物理学 2015-09-17 Kentaro Nomura , Daichi Kurebayashi

We demonstrate a deterministic switching mechanism in collinear altermagnets driven by asymmetric sublattice spin currents. Unlike conventional antiferromagnets, where combined parity-time-reversal symmetry enforces purely staggered…

介观与纳米尺度物理 · 物理学 2025-10-14 Sayan Sarkar , Sunit Das , Amit Agarwal

We uncover a new pathway towards multiferroicity, showing how magnetism can drive ferroelectricity without relying on inversion symmetry breaking of the magnetic ordering. Our free-energy analysis demonstrates that any commensurate…

材料科学 · 物理学 2009-11-11 Joseph J. Betouras , Gianluca Giovannetti , Jeroen van den Brink

We theoretically investigate possible effects of electric current on the spin wave dynamics for the N\'{e}el-type antiferromagnetic order in a honeycomb lattice. Based on a general vector decomposition of the spin polarization of conduction…

介观与纳米尺度物理 · 物理学 2022-06-03 Yong Wang , Wang Yao

Spintronics has advanced through discoveries of various electrically-driven spin dynamics in nanomagnets. Here, we report a novel switching dynamics of spin systems driven by spin-orbit torque, using a noncollinear antiferromagnetic…

介观与纳米尺度物理 · 物理学 2026-05-19 Yuma Sato , Yutaro Takeuchi , Yuta Yamane , Shun Kanai , Shunsuke Fukami

The consequences of coupling magnetic and elastic degrees of freedom, where spins and deformations are carried by point-like objects subject to local interactions, are studied, theoretically and by detailed numerical simulations. From the…

介观与纳米尺度物理 · 物理学 2018-09-19 Thomas Nussle , Pascal Thibaudeau , Stam Nicolis

We demonstrate that the spin Hall effect in a thin film with strong spin-orbit scattering can excite magnetic precession in an adjacent ferromagnetic film. The flow of alternating current through a Pt/NiFe bilayer generates an oscillating…

介观与纳米尺度物理 · 物理学 2015-05-20 Luqiao Liu , Takahiro Moriyama , D. C. Ralph , R. A. Buhrman

Skyrmions dynamics in the approximation of point-particle skyrmions is considered in the multiferroic insulators, where the spiral magnetic structure is accompanied by finite electric dipole moment. The skyrmion motion is studied in the…

介观与纳米尺度物理 · 物理学 2021-02-03 Pavel A. Andreev , Mariya Iv. Trukhanova

We investigate the emergence of anti-ferromagnetic ordering and its effect on the helical edge states in a quantum spin Hall insulator, in the presence of strong Coulomb interaction. Using dynamical mean-field theory, we show that the…

强关联电子 · 物理学 2018-08-01 A. Amaricci , A. Valli , G. Sangiovanni , B. Trauzettel , M. Capone

Fully-compensated ferrimagnets exhibit zero net magnetic moment yet display non-relativistic global spin splitting, making them highly advantageous for constructing high-performance spintronic devices. The general strategy is to break the…

材料科学 · 物理学 2025-07-16 San-Dong Guo , Shaobo Chen , Guangzhao Wang

We show that in magnetic nanostructures with a homogeneous magnetic order, the equilibrium spin current can be nonzero. For example, this is the case of a wide magnetic ring with the magnetization along the ring axis. The physical reason of…

材料科学 · 物理学 2009-11-13 Vitalii K. Dugaev , Patrick Bruno

We study the formation of ferromagnetic and magnetic polaron states in weakly doped heterobilayer transition metal dichalcogenides in the ``heavy fermion'' limit in which one layer hosts a dense set of local moments and the other hosts a…

强关联电子 · 物理学 2024-11-12 Daniele Guerci , J. H. Pixley , Andrew J. Millis

Magnetic skyrmions are magnetic textures with topological protection, which are expected to be information carriers in future spintronic devices. In this work, we propose a scheme to implement hybrid magnetic skyrmions (HMS) in…

应用物理 · 物理学 2023-04-27 Y. Liu , T. T. Liu , Z. P. Hou , D. Y. Chen , Z. Fan , M. Zeng , X. B. Lu , X. S. Gao , M. H. Qin , J. M. Liu