• 文献标题:   Unusual Hyperfine Interaction of Dirac Electrons and NMR Spectroscopy in Graphene
  • 文献类型:   Article
  • 作  者:   DORA B, SIMON F
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW LETTERS
  • ISSN:   0031-9007
  • 通讯作者地址:   Max Planck Inst Phys Komplexer Syst
  • 被引频次:   19
  • DOI:   10.1103/PhysRevLett.102.197602
  • 出版年:   2009

▎ 摘  要

A theory of nuclear magnetic resonance (NMR) in graphene is presented. The canonical form of the electron-nucleus hyperfine interaction is strongly modified by the linear electronic dispersion. The NMR shift and spin-lattice relaxation time are calculated as a function of temperature, chemical potential, and magnetic field, and three distinct regimes are identified: Fermi-, Dirac-gas, and extreme quantum limit behaviors. A critical spectrometer assessment shows that NMR is within reach for fully (13)C enriched graphene of reasonable size.