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Related papers: Spin-transfer torques in antiferromagnets: efficie…

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We study the concept of spin heat accumulation in excited spin valves, more precisely the effective electron temperature that may become spin dependent, both in linear response and far from equilibrium. A temperature or voltage gradient…

Mesoscale and Nanoscale Physics · Physics 2010-04-22 Tero T. Heikkila , Moosa Hatami , Gerrit E. W. Bauer

It is shown that the current-induced torques between a ferromagnetic layer and an antiferromagnetic layer with a compensated interface vanish when the ferromagnet is aligned with an axis of spin-rotation symmetry of the antiferromagnet. For…

Mesoscale and Nanoscale Physics · Physics 2013-11-26 Karthik Prakya , Adrian Popescu , Paul M. Haney

Current-voltage characteristics of a spintromechanical device, in which spin-polarized electrons tunnel between magnetic leads with anti-parallel magnetization through a single level movable quantum dot, are calculated. New exchange- and…

Mesoscale and Nanoscale Physics · Physics 2020-05-20 Olya A. Ilinskaya , Danko Radic , Hee Chul Park , Ilya V. Krive , Robert I. Shekhter , Mats Jonson

Spin manipulation using electric currents is one of the most promising directions in the field of spintronics. We used neutron scattering to observe the influence of an electric current on the magnetic structure in a bulk material. In the…

Strongly Correlated Electrons · Physics 2015-05-20 F. Jonietz , S. Mühlbauer , C. Pfleiderer , A. Neubauer , W. Münzer , A. Bauer , T. Adams , R. Georgii , P. Böni , R. A. Duine , K. Everschor , M. Garst , A. Rosch

We explore the spin superfluid transport in exchange interaction dominated three-sublattice antiferromagnets. The system in the long-wavelength regime is described by an $SO(3)$ invariant field theory. Additional corrections from…

Mesoscale and Nanoscale Physics · Physics 2021-03-03 Bo Li , Alexey A. Kovalev

Antiferromagnets and compensated ferrimagnets offer opportunities to investigate spin dynamics in the 'terahertz gap' because their resonance modes lie in the 0.3 THz to 3 THz range. Despite some inherent advantages when compared to…

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…

Mesoscale and Nanoscale Physics · Physics 2026-05-19 Yuma Sato , Yutaro Takeuchi , Yuta Yamane , Shun Kanai , Shunsuke Fukami

We predict an unconventional spin-transfer torque (STT) acting on the magnetization of a free ferromagnetic (F) layer within N/TI/F vertical heterostructures which originates from strong spin-orbit coupling (SOC) on the surface of a…

Mesoscale and Nanoscale Physics · Physics 2012-10-18 Farzad Mahfouzi , Naoto Nagaosa , Branislav K. Nikolic

We consider the superconducting pairing induced by spin waves exchange in a ferromagnet with both conduction and localized electrons, the latter being described as spins. We use the microscopic Eliashberg theory to describe the pairing of…

Superconductivity · Physics 2019-03-27 Lev Bulaevskii , Ronivon Eneias , Alvaro Ferraz

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…

Mesoscale and Nanoscale Physics · Physics 2022-06-03 Yong Wang , Wang Yao

We derive a unified theory of spin and charge degrees of freedom in a ferromagnet. The spin-transfer torque and spin electromotive force are examined from the coarse-grained perspective of collective coordinates. The resulting equations of…

Mesoscale and Nanoscale Physics · Physics 2022-11-08 Oleg Tchernyshyov

We present a theoretical study of spin-dependent transport through a ferromagnetic domain wall. With an increase of the number of components of the exchange coupling, we have observed that the variance of the conductance becomes half. As…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 J. Ohe , M. Yamamoto , T. Ohtsuki , K. Slevin

Spin-flop transition (SFT) consists in a jump-like reversal of antiferromagnetic magnetic moments into a non-collinear state when the magnetic field increases above the critical value. Potentially the SFT can be utilized in many…

Spin transfer - the transfer of angular momentum from spin-polarized electrical current to magnetic materials - has been extensively researched as an efficient mechanism for the electronic manipulation of the static and dynamic states in…

Materials Science · Physics 2017-12-27 Andrei Zholud , Ryan Freeman , Rongxing Cao , Ajit Srivastava , Sergei Urazhdin

Antiferromagnets as active elements of spintronics can be faster than their ferromagnetic counterparts and more robust to magnetic noise. Owing to the strongly exchange-coupled magnetic sublattice structure, antiferromagnetic order…

Mesoscale and Nanoscale Physics · Physics 2017-05-31 Olena Gomonay , Vincent Baltz , Arne Brataas , Yaroslav Tserkovnyak

We investigate spin-rectification phenomena in canted antiferromagnets, closely connected to the family of altermagnetic materials. Our results show that excitation efficiency is significantly enhanced by the Dzyaloshinskii-Moriya…

Mesoscale and Nanoscale Physics · Physics 2024-10-11 A. El Kanj , S. Mantion , I. Boventer , P. Bortolotti , V. Cros , A. Anane , O. Gomonay , R. Lebrun

Spintronics, since its inception, has mainly focused on ferromagnetic materials for manipulating the spin degree of freedom in addition to the charge degree of freedom, whereas much less attention has been paid to antiferromagnetic…

Mesoscale and Nanoscale Physics · Physics 2021-01-07 H. Y. Yuan , Zhe Yuan , Rembert A. Duine , X. R. Wang

The effect of spin currents on the magnetic order of insulating antiferromagnets (AFMs) is of fundamental interest and can enable new applications. Toward this goal, characterizing the spin-orbit torques (SOT) associated with AFM/heavy…

Mesoscale and Nanoscale Physics · Physics 2022-06-22 Egecan Cogulu , Hantao Zhang , Nahuel N. Statuto , Yang Cheng , Fengyuan Yang , Ran Cheng , Andrew D. Kent

Spin transport in magnetic tunnel junctions in the presence of spin diffusion is considered theoretically. Combining ballistic tunneling across the barrier and diffusive transport in the electrodes, we solve the spin dynamics equation in…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 A Manchon , R. Matsumoto , H. Jaffres , J. Grollier

We report the dynamic characterization of the spin-torque-driven in-plane precession modes of a spin-torque nano-oscillator based on two different synthetic ferrimagnets: a pinned one characterized by a strong RKKY interaction which is…

Mesoscale and Nanoscale Physics · Physics 2024-03-07 E. Monteblanco , F. Garcia-Sanchez , M. Romera , D. Gusakova , L. D. Buda-Prejbeanu , U. Ebels
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