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Large positive in-plane magnetoresistance induced by localized states at nanodomain boundaries in graphene

Wu, Han-Chun; Chaika, Alexander N; Hsu, Ming Chien; Huang, Tsung-Wei; Abid, Mourad; Abid, Mohamed; Aristov, Victor Yu; Molodtsova, Olga V; Babenkov, Sergey V and Niu, Yuran LU , et al. (2017) In Nature Communications 8.
Abstract

Graphene supports long spin lifetimes and long diffusion lengths at room temperature, making it highly promising for spintronics. However, making graphene magnetic remains a principal challenge despite the many proposed solutions. Among these, graphene with zig-zag edges and ripples are the most promising candidates, as zig-zag edges are predicted to host spin-polarized electronic states, and spin-orbit coupling can be induced by ripples. Here we investigate the magnetoresistance of graphene grown on technologically relevant SiC/Si(001) wafers, where inherent nanodomain boundaries sandwich zig-zag structures between adjacent ripples of large curvature. Localized states at the nanodomain boundaries result in an unprecedented positive... (More)

Graphene supports long spin lifetimes and long diffusion lengths at room temperature, making it highly promising for spintronics. However, making graphene magnetic remains a principal challenge despite the many proposed solutions. Among these, graphene with zig-zag edges and ripples are the most promising candidates, as zig-zag edges are predicted to host spin-polarized electronic states, and spin-orbit coupling can be induced by ripples. Here we investigate the magnetoresistance of graphene grown on technologically relevant SiC/Si(001) wafers, where inherent nanodomain boundaries sandwich zig-zag structures between adjacent ripples of large curvature. Localized states at the nanodomain boundaries result in an unprecedented positive in-plane magnetoresistance with a strong temperature dependence. Our work may offer a tantalizing way to add the spin degree of freedom to graphene.

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Nature Communications
volume
8
publisher
Nature Publishing Group
external identifiers
  • scopus:85012928733
  • wos:000394222500001
ISSN
2041-1723
DOI
10.1038/ncomms14453
language
English
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yes
id
d764b797-ce93-476d-a204-988a93de0359
date added to LUP
2017-03-01 10:23:03
date last changed
2018-05-06 04:31:28
@article{d764b797-ce93-476d-a204-988a93de0359,
  abstract     = {<p>Graphene supports long spin lifetimes and long diffusion lengths at room temperature, making it highly promising for spintronics. However, making graphene magnetic remains a principal challenge despite the many proposed solutions. Among these, graphene with zig-zag edges and ripples are the most promising candidates, as zig-zag edges are predicted to host spin-polarized electronic states, and spin-orbit coupling can be induced by ripples. Here we investigate the magnetoresistance of graphene grown on technologically relevant SiC/Si(001) wafers, where inherent nanodomain boundaries sandwich zig-zag structures between adjacent ripples of large curvature. Localized states at the nanodomain boundaries result in an unprecedented positive in-plane magnetoresistance with a strong temperature dependence. Our work may offer a tantalizing way to add the spin degree of freedom to graphene.</p>},
  articleno    = {14453},
  author       = {Wu, Han-Chun and Chaika, Alexander N and Hsu, Ming Chien and Huang, Tsung-Wei and Abid, Mourad and Abid, Mohamed and Aristov, Victor Yu and Molodtsova, Olga V and Babenkov, Sergey V and Niu, Yuran and Murphy, Barry E and Krasnikov, Sergey A and Lübben, Olaf and Liu, Huajun and Chun, Byong Sun and Janabi, Yahya T and Molotkov, Sergei N and Shvets, Igor V. and Lichtenstein, Alexander I. and Katsnelson, Mikhail I. and Chang, Ching-Ray},
  issn         = {2041-1723},
  language     = {eng},
  month        = {02},
  publisher    = {Nature Publishing Group},
  series       = {Nature Communications},
  title        = {Large positive in-plane magnetoresistance induced by localized states at nanodomain boundaries in graphene},
  url          = {http://dx.doi.org/10.1038/ncomms14453},
  volume       = {8},
  year         = {2017},
}