Zollner, Klaus and Gmitra, Martin and Fabian, Jaroslav (2020) Swapping Exchange and Spin-Orbit Coupling in 2D van der Waals Heterostructures. PHYSICAL REVIEW LETTERS, 125 (19): 196402. ISSN 0031-9007, 1079-7114
Full text not available from this repository. (Request a copy)Abstract
The concept of swapping the two most important spin interactions-exchange and spin-orbit coupling-is proposed based on two-dimensional multilayer van der Waals heterostructures. Specifically, we show by performing realistic ab initio simulations, that a single device consisting of a bilayer graphene sandwiched by a 2D ferromagnet Cr2Ge2Te6 (CGT) and a monolayer WS2, is able not only to generate, but also to swap the two interactions. The highly efficient swapping is enabled by the interplay of gate-dependent layer polarization in bilayer graphene and short-range spin-orbit and exchange proximity effects affecting only the layers in contact with the sandwiching materials. We call these structures ex-so-tic, for supplying either exchange (ex) or spin-orbit (so) coupling in a single device, by gating. Such bifunctional devices demonstrate the potential of van der Waals spintronics engineering using 2D crystal multilayers.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GRAPHENE; GRAPHITE; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Mar 2021 09:55 |
| Last Modified: | 08 Mar 2021 09:55 |
| URI: | https://pred.uni-regensburg.de/id/eprint/43416 |
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