Karpiak, Bogdan and Cummings, Aron W. and Zollner, Klaus and Vila, Marc and Khokhriakov, Dmitrii and Hoque, Anamul Md and Dankert, Andre and Svedlindh, Peter and Fabian, Jaroslav and Roche, Stephan and Dash, Saroj P. (2020) Magnetic proximity in a van der Waals heterostructure of magnetic insulator and graphene. 2D MATERIALS, 7 (1): 015026. ISSN 2053-1583,
Full text not available from this repository. (Request a copy)Abstract
Engineering 2D material heterostructures by combining the best of different materials in one ultimate unit can offer a plethora of opportunities in condensed matter physics. Here, in the van der Waals heterostructures of the ferromagnetic insulator Cr2Ge2Te6 and graphene, our observations indicate an out-of-plane proximity-induced ferromagnetic exchange interaction in graphene. The perpendicular magnetic anisotropy of Cr2Ge2Te6 results in significant modification of the spin transport and precession in graphene, which can be ascribed to the proximity-induced exchange interaction. Furthermore, the observation of a larger lifetime for perpendicular spins in comparison to the in-plane counterpart suggests the creation of a proximity-induced anisotropic spin texture in graphene. Our experimental results and density functional theory calculations open up opportunities for the realization of proximity-induced magnetic interactions and spin filters in 2D material heterostructures and can form the basic building blocks for future spintronic and topological quantum devices.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | FERROMAGNETISM; graphene; 2D ferromagnet; van der Waals heterostructures; Cr2Ge2Te6; proximity effect; magnetism; spin anisotropy |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Apr 2021 09:41 |
| Last Modified: | 08 Apr 2021 09:41 |
| URI: | https://pred.uni-regensburg.de/id/eprint/45551 |
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