Van der Waals Spin Valves

Physical Review Letters
C CardosoJ Fernández-Rossier

Abstract

We propose spin valves where a 2D nonmagnetic conductor is intercalated between two ferromagnetic insulating layers. In this setup, the relative orientation of the magnetizations of the insulating layers can have a strong impact on the in-plane conductivity of the 2D conductor. We first show this for a graphene bilayer, described with a tight-binding model, placed between two ferromagnetic insulators. In the antiparallel configuration, a band gap opens at the Dirac point, whereas in the parallel configuration, the graphene bilayer remains conducting. We then compute the electronic structure of graphene bilayer placed between two monolayers of the ferromagnetic insulator CrI_{3}, using density functional theory. Consistent with the model, we find that a gap opens at the Dirac point only in the antiparallel configuration.

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Citations

Jun 7, 2019·Science·Joaquin Fernández-Rossier
Oct 5, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Ming-Yang LiuYao He
Nov 16, 2019·Physical Chemistry Chemical Physics : PCCP·Sushant Kumar BeheraPritam Deb
Jun 20, 2020·Nanoscale·Seung Woo JangMyung Joon Han
Nov 5, 2020·Physical Chemistry Chemical Physics : PCCP·Jie YangJinbo Yang
Dec 10, 2020·Nanoscale Research Letters·Guojing Hu, Bin Xiang
Dec 19, 2020·Physical Review Letters·Roberto E TroncosoAsle Sudbø
Nov 21, 2020·Physical Review Letters·Klaus ZollnerJaroslav Fabian
Feb 20, 2021·Physical Review Letters·Tobias M R WolfJose L Lado
Aug 14, 2020·Nano Letters·D SorianoJ Fernández-Rossier
May 8, 2021·Nature Nanotechnology·Talieh S GhiasiBart J van Wees
Jul 21, 2021·Nature Nanotechnology·Juan F SierraSergio O Valenzuela
Dec 31, 2020·ACS Applied Materials & Interfaces·Hangyu ZhouWeisheng Zhao
Dec 31, 2019·Nano Letters·Jeongwoo KimNoejung Park
Dec 28, 2018·ACS Applied Materials & Interfaces·Erdem BalcıSavas Berber
Apr 16, 2019·ACS Applied Materials & Interfaces·Jiaqi ZhouWeisheng Zhao
Jun 27, 2019·Nano Letters·Soudabeh MashhadiKlaus Kern

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