A high-temperature ferromagnetic topological insulating phase by proximity coupling

Ferhat Katmis,Valeria Lauter,Flavio S. Nogueira,Badih A. Assaf,Michelle E. Jamer,Peng Wei,Biswarup Satpati,John W. Freeland,Ilya Eremin,Don Heiman,Pablo Jarillo-Herrero,Jagadeesh S. Moodera

NATURE（2016）

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摘要

Coupling a ferromagnetic insulator to a topological insulator induces a robust magnetic state at the interface, resulting from the large spin-orbit interaction and the spin-momentum locking property of Dirac fermions, and leads to an extraordinary enhancement of the magnetic ordering (Curie) temperature.

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关键词

Topological insulators,Surfaces,interfaces and thin films,Spintronics,Magnetic properties and materials

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