Presentation
19 October 2017 Emergent orbitronics and dissipationless magnetization control in complex magnets (Conference Presentation)
Jan-Philipp Hanke, Dongwook Go, Patrick Buhl, Frank Freimuth, Stefan Blügel, Yuriy Mokrousov
Author Affiliations +
Abstract
The topological properties of magnets, encoded in the reciprocal space distribution of the Berry phase, have caused a revolution in our understanding of their transport properties. The discovery that the non-trivial geometry of states in a solid is ultimately related to the orbital properties of electrons allows us to predict from theoretical arguments a pronounced orbital magnetism in various situations ranging from Rashba systems to Chern insulators. Moreover, we demonstrate that a combination of complex geometry in real and reciprocal spaces leads to an emergence of topological orbital magnetism in non-collinear magnets, which overall opens new vistas in large current-induced orbital magnetization response and magnetization manipulation in antiferromagnets. Finally, we predict that in insulating systems with non-trivial topologies the strength of the magneto-electric response as manifested in the magnitude of the current-induced spin-orbit torques and Dzyaloshinskii-Moriya interaction can exceed significantly that of conventional metallic magnets, which opens new perspectives in dissipationless control of magnetization in magnetic materials.
Conference Presentation
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jan-Philipp Hanke, Dongwook Go, Patrick Buhl, Frank Freimuth, Stefan Blügel, and Yuriy Mokrousov "Emergent orbitronics and dissipationless magnetization control in complex magnets (Conference Presentation)", Proc. SPIE 10357, Spintronics X, 103570Z (19 October 2017); https://doi.org/10.1117/12.2273819
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KEYWORDS
Magnetism

Dielectrics

Chalcogenides

Control systems

Electrons

Graphene

Nanostructures

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