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Karpiak, Bogdan ; Cummings, Aron W. ; Zollner, Klaus ; Vila, Marc ; Khokhriakov, Dmitrii ; Hoque, Anamul Md ; Dankert, Andre ; Svedlindh, Peter ; Fabian, Jaroslav ; Roche, Stephan ; Dash, Saroj P.

Magnetic proximity in a van der Waals heterostructure of magnetic insulator and graphene

Karpiak, Bogdan, Cummings, Aron W., Zollner, Klaus , Vila, Marc, Khokhriakov, Dmitrii, Hoque, Anamul Md, Dankert, Andre, Svedlindh, Peter, Fabian, Jaroslav , Roche, Stephan and Dash, Saroj P. (2019) Magnetic proximity in a van der Waals heterostructure of magnetic insulator and graphene. 2D Materials 7 (1), 015026.

Date of publication of this fulltext: 18 Dec 2019 13:49
Article
DOI to cite this document: 10.5283/epub.41300


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 ...

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.



Involved Institutions


Details

Item typeArticle
Journal or Publication Title2D Materials
Publisher:IOP Publishing
Volume:7
Number of Issue or Book Chapter:1
Page Range:015026
DateDecember 2019
InstitutionsPhysics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian
Identification Number
ValueType
10.1088%2F2053-1583%2Fab5915DOI
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-413000
Item ID41300

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