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We develop a theory for spin transported by coherent Neel dynamics through an antiferromagnetic insulator coupled to a ferromagnetic insulator on one side and a current-carrying normal metal with strong spin-orbit coupling on the other. The…

Mesoscale and Nanoscale Physics · Physics 2015-07-22 So Takei , Takahiro Moriyama , Teruo Ono , Yaroslav Tserkovnyak

The ultimate goal of spintronics is achieving electrically controlled coherent manipulation of the electron spin at room temperature to enable devices such as spin field-effect transistors. With conventional materials, coherent spin…

Mesoscale and Nanoscale Physics · Physics 2024-11-01 Josep Ingla-Aynés , Franz Herling , Jaroslav Fabian , Luis E. Hueso , Fèlix Casanova

Had magnetic monopoles been ubiquitous as electrons are, we would probably have had a different form of matter, and power plants based on currents of these magnetic charges would have been a familiar scene of modern technology. Magnetic…

Strongly Correlated Electrons · Physics 2017-10-17 Mohamed Azzouz

In information technology devices, current-driven state switching is crucial in various disciplines including spintronics, where the contribution of heating to the switching mechanism plays an inevitable role. Recently, current-driven…

Materials Science · Physics 2024-05-21 Myoung-Woo Yoo , Virginia O. Lorenz , Axel Hoffmann , David G. Cahill

Spintronics is expected as the next-generation technology based on the novel notch of spin degree of freedom of electrons. Half metals, a class of materials which behave as a metal in one spin direction and an insulator in the opposite spin…

Materials Science · Physics 2011-08-19 Xiao HU

Controlling spin current lies at the heart of spintronics and its applications. The sign of spin currents is monotonous in ferromagnets once the current direction is determined. Spin currents in antiferromagnets can possess opposite…

Spintronics in ferromagnetic metals is built on a complementary set of phenomena in which magnetic configurations influence transport coefficients and transport currents alter magnetic configurations. In this Letter we propose that…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. S. Nunez , R. A. Duine , A. H. MacDonald

Spintronics is an approach to electronics in which the spin of the electrons is exploited to control the electric resistance R of devices. One basic building block is the spin-valve, which is formed if two ferromagnetic electrodes are…

Mesoscale and Nanoscale Physics · Physics 2016-08-16 Sangeeta Sahoo , Takis Kontos , Jürg Furer , Christian Hoffmann , Matthias Gräber , Audrey Cottet , Christian Schönenberger

Recent results in electric-field control of magnetism have paved the way for the design of alternative magnetic and spintronic devices with enhanced functionalities and low power consumption. Among the diversity of reported magnetoelectric…

Ferromagnets are known to support spin-polarized currents that control various spin-dependent transport phenomena useful for spintronics. On the contrary, fully compensated antiferromagnets are expected to support only globally spin-neutral…

Mesoscale and Nanoscale Physics · Physics 2023-05-26 Ding-Fu Shao , Yuan-Yuan Jiang , Jun Ding , Shu-Hui Zhang , Zi-An Wang , Rui-Chun Xiao , Gautam Gurung , W. J. Lu , Y. P. Sun , Evgeny Y. Tsymbal

Ferromagnets with high spin polarization are known to be valuable for spintronics--a research field that exploits the spin degree of freedom in information technologies. Recently, antiferromagnets have emerged as promising alternative…

Materials Science · Physics 2024-12-02 Gautam Gurung , Mohamed Elekhtiar , Qing-Qing Luo Ding-Fu Shao , Evgeny Y. Tsymbal

Electrical manipulation of spin textures inside antiferromagnets represents a new opportunity for developing spintronics with superior speed and high device density. Injecting spin currents into antiferromagnets and realizing efficient…

The research into insulating ferrimagnetic garnets has gained enormous momentum in the past decade. This is partly due to the improvement in the techniques to grow high-quality ultrathin films with desirable properties and the advances in…

Materials Science · Physics 2021-05-26 Can Onur Avci

Electric currents carrying a net spin polarization are widely used in spintronics, whereas globally spin-neutral currents are expected to play no role in spin-dependent phenomena. Here we show that, in contrast to this common expectation,…

Mesoscale and Nanoscale Physics · Physics 2021-12-06 Ding-Fu Shao , Shu-Hui Zhang , Ming Li , Chang-Beom Eom , Evgeny Y. Tsymbal

Antiferromagnetic materials are magnetic inside, however, the direction of their ordered microscopic moments alternates between individual atomic sites. The resulting zero net magnetic moment makes magnetism in antiferromagnets invisible on…

Materials Science · Physics 2016-03-23 T. Jungwirth , X. Marti , P. Wadley , J. Wunderlich

For a long time, there have been no efficient ways of controlling antiferromagnets. Quite a strong magnetic field was required to manipulate the magnetic moments because of a high molecular field and a small magnetic susceptibility. It was…

Materials Science · Physics 2017-08-28 Takahiro Moriyama , Kent Oda , Teruo Ono

Spin-polarized antiferromagnets have recently gained significant interest because they combine the advantages of both ferromagnets (spin polarization) and antiferromagnets (absence of net magnetization) for spintronics applications. In…

Materials Science · Physics 2024-08-29 Soho Shim , M. Mehraeen , Joseph Sklenar , Steven S. -L. Zhang , Axel Hoffmann , Nadya Mason

We investigate vortex configuration in antiferromagnetic thin discs. It is shown that the vortex acquires oscillatory dynamics with well-defined amplitude and frequency which may be controlled on demand by an alternating spin polarized…

Mesoscale and Nanoscale Physics · Physics 2018-12-19 R. L. Silva , R. C. Silva , R. J. C. Lopes , W. A. Moura-Melo , A. R. Pereira

It is demonstrated theoretically that a thin layer of an anisotropic antiferromagnetic (AFM) insulator can effectively conduct spin current by excitation of a pair of evanescent AFM spin wave modes. The spin current flowing through the AFM…

Mesoscale and Nanoscale Physics · Physics 2016-06-28 Roman Khymyn , Ivan Lisenkov , Vasil S. Tiberkevich , Andrei N. Slavin , Boris A. Ivanov

Topological antiferromagnetic (AFM) spintronics is an emerging field of research, which exploits the N\'eel vector to control the topological electronic states and the associated spin-dependent transport properties. A recently discovered…

Mesoscale and Nanoscale Physics · Physics 2019-02-22 Ding-Fu Shao , Gautam Gurung , Shu-Hui Zhang , Evgeny Y. Tsymbal