Current-Induced Torques Due to Compensated Antiferromagnets
نویسندگان
چکیده
منابع مشابه
Current-induced torques in magnetic materials.
The magnetization of a magnetic material can be reversed by using electric currents that transport spin angular momentum. In the reciprocal process a changing magnetization orientation produces currents that transport spin angular momentum. Understanding how these processes occur reveals the intricate connection between magnetization and spin transport, and can transform technologies that gener...
متن کاملPhenomenology of current-induced dynamics in antiferromagnets.
We derive a phenomenological theory of current-induced staggered magnetization dynamics in antiferromagnets. The theory captures the reactive and dissipative current-induced torques and the conventional effects of magnetic fields and damping. A Walker ansatz describes the dc current-induced domain-wall motion when there is no dissipation. If magnetic damping and dissipative torques are included...
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Spin pumping and spin-transfer torques are two reciprocal phenomena widely studied in ferromagnetic materials. However, pumping from antiferromagnets and its relation to current-induced torques have not been explored. By calculating how electrons scatter off a normal metal-antiferromagnetic interface, we derive pumped spin and staggered spin currents in terms of the staggered field, the magneti...
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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 torques. In ferromagnetic semiconductors, where the spin-orbit coupling is large, these considerations modify the behavior of the spin transfer torques. One exam...
متن کاملCurrent induced torques and interfacial spin-orbit coupling: Semiclassical modeling
Paul M. Haney,1 Hyun-Woo Lee,2 Kyung-Jin Lee,1,3,4,5 Aurélien Manchon,6 and M. D. Stiles1 1Center for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-6202, USA 2PCTP and Department of Physics, Pohang University of Science and Technology, Kyungbuk 790-784, Korea 3Department of Materials Science & Engineering, Korea University, Seoul ...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2008
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.100.196801