Vector spin Seebeck effect and spin swapping effect in antiferromagnetic insulators with non-collinear spin structure
Source abstract
Abstract
Antiferromagnets (AFs) are prospective for next-generation high-density and high-speed spintronic applications due to their negligible stray field and ultrafast spin dynamics, notwithstanding the challenges in detecting and manipulating AF order with no magnetization (M = 0). Among the AFs, non-collinear AFs are of particular interest because of their unique properties arising from the non-collinear spin structure and the small magnetization M. In this work, we describe the recently observed vector spin Seebeck effect in non-collinear LuFeO3, where the magneto-thermovoltage under an in-plane temperature gradient, not previously observed, is consistent with the predicted spin swapping effect. Our results shed light on the importance of the non-collinear spin structure in the emerging spin phenomena in non-collinear AFs and offer a new class of materials for AF spintronics and spin caloritronics.
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Research context
OpenAlex topics: Magnetic properties of thin films · Multiferroics and related materials · Physics of Superconductivity and Magnetism
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics and Astronomy, Johns Hopkins University 1 , Baltimore, Maryland 21218, USA
Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University 2 , Nanjing 211189, China
Department of Mechanical Engineering, University of Texas at Austin 3 , Austin, Texas 78712, USA
Center for Condensed Matter Sciences, National Taiwan University 4 , Taipei 10617, Taiwan
Department of Physics, National Taiwan University 5 , Taipei 10617, Taiwan
Funding
U.S. Department of Energy · National Science Foundation · National Natural Science Foundation of China · Ministry of Science and Technology, Taiwan
References (57)
Show source-provided references
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