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Title: Anomalous Nonlocal Resistance and Spin-Charge Conversion Mechanisms in Two-Dimensional Metals
Authors: Huang, Chunli
Chong, Yidong
Cazalilla, Miguel A.
Keywords: Functionalized Graphene
Conversion Mechanism
Issue Date: 2017
Source: Huang, C., Chong, Y., & Cazalilla, M. A. (2017). Anomalous Nonlocal Resistance and Spin-Charge Conversion Mechanisms in Two-Dimensional Metals. Physical Review Letters, 119(13), 136804-.
Series/Report no.: Physical Review Letters
Abstract: We uncover two anomalous features in the nonlocal transport behavior of two-dimensional metallic materials with spin-orbit coupling. Firstly, the nonlocal resistance can have negative values and oscillate with distance, even in the absence of a magnetic field. Secondly, the oscillations of the nonlocal resistance under an applied in-plane magnetic field (Hanle effect) can be asymmetric under field reversal. Both features are produced by direct magnetoelectric coupling, which is possible in materials with broken inversion symmetry but was not included in previous spin diffusion theories of nonlocal transport. These effects can be used to identify the relative contributions of different spin-charge conversion mechanisms. They should be observable in adatom-functionalized graphene, and may provide the reason for discrepancies in recent nonlocal transport experiments on graphene.
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.119.136804
Rights: © 2017 APS Publishing. This paper was published in Physical Review Letters and is made available as an electronic reprint (preprint) with permission of APS Publishing. The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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