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Harnessing the unique properties of non-collinear antiferromagnets (AFMs) will be essential for exploiting the full potential of antiferromagnetic spintronics. Indeed, many of the effects enabling ferromagnetic spintronic devices have a…

Noncollinear antiferromagnets have promising potential to replace ferromagnets in the field of spintronics as high-density devices with ultrafast operation. To take full advantage of noncollinear antiferromagnets in spintronics…

Materials Science · Physics 2021-08-05 T. Hajiri , K. Matsuura , K. Sonoda , E. Tanaka , K. Ueda , H. Asano

We theoretically investigate the spin Seebeck effect (SSE) in antiferromagnets and ferrimagnets, and show that the SSE vanishes in antiferromagnets but survives in ferrimagnets even at the magnetization compensation point despite the…

Materials Science · Physics 2013-03-25 Yuichi Ohnuma , Hiroto Adachi , Eiji Saitoh , Sadamichi Maekawa

We develop a low-temperature, long-wavelength theory for the interfacial spin Seebeck effect (SSE) in easy-axis antiferromagnets. The field-induced spin-flop (SF) transition of N\'eel order is associated with a qualitative change in SSE…

Mesoscale and Nanoscale Physics · Physics 2020-07-29 Derek Reitz , Junxue Li , Wei Yuan , Jing Shi , Yaroslav Tserkovnyak

We investigate a new class of topological antiferromagnetic (AF) Chern insulators driven by electronic interactions in two-dimensional systems without inversion symmetry. Despite the absence of a net magnetization, AF Chern insulators…

Strongly Correlated Electrons · Physics 2018-04-17 Kun Jiang , Sen Zhou , Xi Dai , Ziqiang Wang

We develop a theory of the spin Seebeck effect (SSE) in paramagnets as well as in antiferromagnets at elevated temperatures where the classical limit of the fluctuation-dissipation theorem is applicable. Employing dissipative stochastic…

Mesoscale and Nanoscale Physics · Physics 2019-08-27 Yutaka Yamamoto , Masanori Ichioka , Hiroto Adachi

Altermagnets exhibit nonrelativistic spin splitting due to the breaking of time-reversal symmetry and have been garnering significant attention as promising materials for spintronic applications. In contrast, conventional antiferromagnets…

Materials Science · Physics 2026-02-03 Jin Matsuda , Hikaru Watanabe , Ryotaro Arita

We develop a microscopic theory for the spin Seebeck effect (SSE) in N\'eel and canted phases of antiferromagnetic insulators. We calculate the DC spin current tunneling from the antiferromagnet to an attached metal, incorporating the…

Strongly Correlated Electrons · Physics 2024-02-14 Keisuke Masuda , Masahiro Sato

By molecular dymanics simulations we study the spin Seebeck effect as a function of magnetic field in the prototype classical easy-axis antiferromagnetic chain, in the far-out of equilibrium as well as linear response regime. We find…

Statistical Mechanics · Physics 2023-11-29 X. Zotos

Longitudinal spin Seebeck effect has been investigated for an uniaxial antiferromagnetic insulator Cr2O3, characterized by a spin-flop transition under magnetic field along the c-axis. We have found that temperature gradient applied normal…

Strongly Correlated Electrons · Physics 2016-01-06 S. Seki , T. Ideue , M. Kubota , Y. Kozuka , R. Takagi , M. Nakamura , Y. Kaneko , M. Kawasaki , Y. Tokura

Low power spintronic devices based on the propagation of pure magnonic spin currents in antiferromagnetic insulator materials offer several distinct advantages over ferromagnetic components including higher frequency magnons and a stability…

Materials Science · Physics 2021-06-30 A. Ross , R. Lebrun , M. Evers , A. Deák , L. Szunyogh , U. Nowak , M. Kläui

The interaction between the itinerant spins in metals and localized spins in magnetic insulators thus far has only been explored in collinear spin systems, such as garnets. Here, we report the spin-Hall magnetoresistance (SMR) sensitive to…

Materials Science · Physics 2016-10-17 A. Aqeel , N. Vlietstra , A. Roy , M. Mostovoy , B. J. van Wees , T. T. M. Palstra

While ferromagnets are at the heart of daily life applications, their large magnetization and resulting energy cost for switching bring into question their suitability for reliable low-power spintronic devices. Non-collinear…

Spin-driven multiferroics exhibit strong magnetoelectric coupling, with notable polarization changes under a magnetic field, but these effects are usually limited to high-Z magnetic insulators with low electronic polarization. In this work,…

Materials Science · Physics 2024-12-31 Ranquan Cao , Ruizhi Dong , Ruixiang Fei , Yugui Yao

The longitudinal spin Seebeck effect is measured on the ferromagnetic insulator Fe$_3$O$_4$ with the ferromagnetic metal Co$_{0.2}$Fe$_{0.6}$B$_{0.2}$ (CoFeB) as the spin detector. By using a non-magnetic spacer material between the two…

Mesoscale and Nanoscale Physics · Physics 2014-09-09 Stephen M. Wu , Jason Hoffman , John E. Pearson , Anand Bhattacharya

The abilities to inject and detect spin carriers are fundamental for research on transport and manipulation of spin information. Pure electronic spin currents have been recently studied in nanoscale electronic devices using a non-local…

Mesoscale and Nanoscale Physics · Physics 2012-09-25 I. J. Vera-Marun , V. Ranjan , B. J. van Wees

We report the experimental observation of the spin Seebeck effect (SSE) in Ag/CoFe noble metal/magnetic metal bilayers with a longitudinal structure. Thermal voltages jointly generated by the anomalous Nernst effect (ANE) and the SSE were…

Materials Science · Physics 2015-10-29 Y. Sheng , M. Y. Yang , Y. Cao , K. M. Cai , G. N. Wei , G. H. Yu , B. Zhang , X. Q. Ma , K. Y. Wang

Antiferromagnets (AFMs), in contrast to ferromagnets, show a nontrivial magnetic structure with zero net magnetization. However, they share a number of spintronic effects with ferromagnets, including spin-pumping and spin transfer torques.…

Mesoscale and Nanoscale Physics · Physics 2015-05-06 Gomonay Olena

An antiferromagnet is a promising material for spin-orbit torque generation. Earlier studies of the spin-orbit torque in an antiferromagnet are limited to collinear spin configurations. We calculate the spin-orbit torque in an…

Mesoscale and Nanoscale Physics · Physics 2018-04-04 Suik Cheon , Hyun-Woo Lee

The influence of an asymmetric in-plane magnetic anisotropy on the thermally activated spin current is studied theoretically for two different systems; (i) the system consisting of a ferromagnetic insulator in a direct contact with a…

Mesoscale and Nanoscale Physics · Physics 2015-12-09 L. Chotorlishvili , Z. Toklikishvili , S. R. Etesami , V. K. Dugaev , J. Barnas , J. Berakdar