• 文献标题:   Piezo-antiferromagnetic effect of sawtooth-like graphene nanoribbons
  • 文献类型:   Article
  • 作  者:   ZHAO SQ, LU Y, ZHANG YC, LU WG, LIANG WJ, WANG EG
  • 作者关键词:  
  • 出版物名称:   APPLIED PHYSICS LETTERS
  • ISSN:   0003-6951 EI 1077-3118
  • 通讯作者地址:   Chinese Acad Sci
  • 被引频次:   2
  • DOI:   10.1063/1.4878840
  • 出版年:   2014

▎ 摘  要

A type of sawtooth-like graphene nanoribbon (SGNR) with piezo-antiferromagnetic effect is studied numerically. The ground state of the studied SGNR changes from nonmagnetic state to antiferromagnetic state with uniaxial strain. The changes of the spin-charge distributions during the stretching are investigated. The Hubbard model reveals that the hopping integrals between the p-orbitals of the carbon atoms are responsible to the piezo-antiferromagnetic effect. The study sheds light on the application of graphene-based structures to nanosensors and spintronic devices. (C) 2014 AIP Publishing LLC.