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Picosecond switching of the staggered antiferromagnetic order is shown to be realizable through spin-transfer torques from a short current pulse. The coupled dynamics of sublattice magnetization is mapped onto a classical pendulum subject…

Mesoscale and Nanoscale Physics · Physics 2015-03-03 Ran Cheng , Matthew W. Daniels , Jian-Gang Zhu , Di Xiao

Spin currents can be generated through various mechanisms, including the piezospintronic effect, which arises when strain or lattice distortions induce a change in the dipolar spin moment, causing a pure spin current without necessarily…

Mesoscale and Nanoscale Physics · Physics 2026-03-24 Martin Latorre , Gaspar De la Barrera , Roberto E. Troncoso , Alvaro S. Nunez

We show how the spin-transfer torque generated by an ac voltage may be used to excite a paramagnetic resonance of an atomic spin deposited on a metallic surface. This mechanism is independent of the environment of the atom and may explain…

Mesoscale and Nanoscale Physics · Physics 2019-03-06 Alexey M. Shakirov , Alexey N. Rubtsov , Pedro Ribeiro

We study the nonlinear magnon spin current induced by an ac electric field under light irradiation in collinear antiferromagnets with broken inversion symmetry. For linearly polarized light, we find that a dc spin current appears through…

Strongly Correlated Electrons · Physics 2023-02-03 Kosuke Fujiwara , Sota Kitamura , Takahiro Morimoto

Current-induced magnetization excitation is a core phenomenon for next-generation magnetic nanodevices, and has been attributed to the spin-transfer torque (STT) that originates from the transfer of the spin angular momentum between a…

Materials Science · Physics 2016-03-30 K. J. Kim , T. Moriyama , T. Koyama , D. Chiba , S. W. Lee , S. J. Lee , K. J. Lee , H. W. Lee , T. Ono

Using irreversible thermodynamics we show that current-induced spin transfer torque within a magnetic domain implies spin pumping of current within that domain. This has experimental implications for samples both with conducting leads and…

Other Condensed Matter · Physics 2009-11-13 Wayne M. Saslow

The electrical response of two diffusive metals is studied when they are linked by a magnetic insulator hosting a topologically stable (superfluid) spin current. We discuss how charge currents in the metals induce a spin supercurrent state,…

Mesoscale and Nanoscale Physics · Physics 2015-10-14 So Takei , Yaroslav Tserkovnyak

Motivated by the need to understand current-induced magnetization dynamics at the nanoscale, we have developed a formalism, within the framework of Keldysh Green function approach, to study the current-induced dynamics of a ferromagnetic…

Mesoscale and Nanoscale Physics · Physics 2017-05-24 Farzad Mahfouzi , Nicholas Kioussis

In systems with strong spin-orbit coupling, the relationship between spin-transfer torque and the divergence of the spin current is generalized to a relation between spin transfer torques, total angular momentum current, and mechanical…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 Paul M. Haney , M. D. Stiles

Large spin current applied to a uniform ferromagnet leads to a spin-wave instability as pointed out recently. In this paper, it is shown that such spin-wave instability is absent in a state containing a domain wall, which indicates that…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Junya Shibata , Gen Tatara , Hiroshi Kohno

The spin current model of electric polarization of multiferroics is justified via the quantum hydrodynamic method and the mean-field part of the spin-orbit interaction. The spin current model is applied to derive the electric polarization…

Materials Science · Physics 2024-09-10 Pavel A. Andreev , Mariya Iv. Trukhanova

In contrast with rich investigations about the translation of an antiferromagnetic (AFM) texture, spin precession in an AFM texture is seldom concerned for lacking an effective driving method. In this work, however, we show that under an…

Materials Science · Physics 2023-02-01 Yangyi Chen , Xu Ge , Wei Luo , Shiheng Liang , Xiaofei Yang , Long You , Yue Zhang

A new current induced spin-torque transfer effect has been observed in a single ferromagnetic layer without resorting to multilayers. At a specific current density of one polarity injected from a point contact, abrupt resistance changes due…

Condensed Matter · Physics 2009-11-07 Y. Ji , C. L. Chien

We study the spin dynamics in antiferromagnetic nanowire under an applied temperature gradient using micromagnetic simulations on a classical spin model with a uniaxial anisotropy. The entropic torque driven domain-wall motion and the…

Computational Physics · Physics 2018-02-21 Zhengren Yan , Zhiyuan Chen , Minghui Qin , Xubing Lu , Xingsen Gao , Junming Liu

Antiferromagnetic spintronics is an emerging research field which aims to utilize antiferromagnets as core elements in spintronic devices. A central motivation toward this direction is that antiferromagnetic spin dynamics is expected to be…

Superconductors are famously capable of supporting persistent electrical currents, that is, currents that flow without any measurable decay as long as the material is kept in the superconducting state. We introduce here a class of materials…

Superconductivity · Physics 2025-07-31 Kyle Monkman , Joan Weng , Niclas Heinsdorf , Alberto Nocera , Marcel Franz

Current driven domain wall motion in curved Heavy Metal/Ferrimagnetic/Oxide multilayer strips is investigated using systematic micromagnetic simulations which account for spin-orbit coupling phenomena. Domain wall velocity and…

Materials Science · Physics 2024-01-25 David Osuna Ruiz , Óscar Alejos , Víctor Raposo , Eduardo Martínez

We report on a new electromagnetic phenomenon that emerges in Mott insulators, i.e., materials that do not conduct electricity because of strong electronic Coulomb repulsion. The phenomenon manifests as antiferromagnetic ordering due to…

Strongly Correlated Electrons · Physics 2015-05-13 K. A. Al-Hassanieh , C. D. Batista , G. Ortiz , L. N. Bulaevskii

Altermagnets and fully-compensated ferrimagnets are two canonical classes of zero-net-moment magnets. An altermagnetic (AM) half-metal cannot exist due to its AM spin splitting, while a fully-compensated ferrimagnetic (FC-FIM) metal seems…

Materials Science · Physics 2025-12-08 San-Dong Guo , Qiqi Luo , Shi-Hao Zhang , Peng Jiang

We predict a mechanism to controllably manipulate domain walls in kagome antiferromagnets via a single linearly polarized spin-wave source. We show by means of atomistic spin dynamics simulations of antiferromagnets with kagome structure…

Mesoscale and Nanoscale Physics · Physics 2021-10-14 Davi R. Rodrigues , Akshaykumar Salimath , Karin Everschor-Sitte , Kjetil M. D. Hals