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 and Jagadeesh S. Moodera ()
Additional contact information
Ferhat Katmis: Massachusetts Institute of Technology
Valeria Lauter: Neutron Sciences Directorate, Oak Ridge National Laboratory
Flavio S. Nogueira: Institut fuer Theoretische Physik III, Ruhr-Universitaet Bochum
Badih A. Assaf: Northeastern University
Michelle E. Jamer: Northeastern University
Peng Wei: Massachusetts Institute of Technology
Biswarup Satpati: Saha Institute of Nuclear Physics
John W. Freeland: Advanced Photon Source, Argonne National Laboratory
Ilya Eremin: Institut fuer Theoretische Physik III, Ruhr-Universitaet Bochum
Don Heiman: Northeastern University
Pablo Jarillo-Herrero: Massachusetts Institute of Technology
Jagadeesh S. Moodera: Massachusetts Institute of Technology

Nature, 2016, vol. 533, issue 7604, 513-516

Abstract: 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.

Date: 2016
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DOI: 10.1038/nature17635

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