• 文献标题:   Observation of resistively detected hole spin resonance and zero-field pseudo-spin splitting in epitaxial graphene
  • 文献类型:   Article
  • 作  者:   MANI RG, HANKINSON J, BERGER C, DE HEER WA
  • 作者关键词:  
  • 出版物名称:   NATURE COMMUNICATIONS
  • ISSN:   2041-1723
  • 通讯作者地址:   Georgia State Univ
  • 被引频次:   41
  • DOI:   10.1038/ncomms1986
  • 出版年:   2012

▎ 摘  要

Electronic carriers in graphene show a high carrier mobility at room temperature. Thus, this system is widely viewed as a potential future charge-based high-speed electronic material to complement-or replace-silicon. At the same time, the spin properties of graphene have suggested improved capability for spin-based electronics or spintronics and spin-based quantum computing. As a result, the detection, characterization and transport of spin have become topics of interest in graphene. Here we report a microwave photo-excited transport study of monolayer and trilayer graphene that reveals an unexpectedly strong microwave-induced electrical response and dual microwave-induced resonances in the dc resistance. The results suggest the resistive detection of spin resonance, and provide a measurement of the g-factor, the spin relaxation time and the sub-lattice degeneracy splitting at zero magnetic field.