• 文献标题:   Hyperfine interactions in graphene and related carbon nanostructures
  • 文献类型:   Article
  • 作  者:   YAZYEV OV
  • 作者关键词:  
  • 出版物名称:   NANO LETTERS
  • ISSN:   1530-6984
  • 通讯作者地址:   Ecole Polytech Fed Lausanne
  • 被引频次:   84
  • DOI:   10.1021/nl072667q
  • 出版年:   2008

▎ 摘  要

Hyperfine interactions, magnetic interactions between the spins of electrons and nuclei, in graphene and related carbon nanostructures are studied. By using a combination of accurate first principles calculations on graphene fragments and statistical analysis, I show that both isotropic and dipolar hyperfine interactions in Sp(2) carbon nanostructures can be accurately described in terms of the local electron spin distribution and atomic structure. A complete set of parameters describing the hyperfine interactions of (13)C and other nuclear spins at substitution impurities and edge terminations is determined. These results permit the design of graphene-based nanostructures allowing for longer electron spin coherence times which are required by spintronics and quantum information processing applications. Practical recipes for minimizing hyperfine interactions in carbon nanostructures are given.