Experimental evidence for Efros-Shklovskii variable range hopping in hydrogenated graphene

Chiashain Chuang, R. K. Puddy, Huang De Lin, Shun Tsung Lo, T. M. Chen, C. G. Smith, C. T. Liang

研究成果: Article同行評審

39 引文 斯高帕斯(Scopus)

摘要

We have performed transport measurements on a hydrogenated graphene flake. It is found that conventional analysis cannot allow us to determine whether Mott variable range hopping (VRH) or Efros-Shklovskii (ES) VRH is the dominant mechanism in our system. By employing the modified resistance curve derivative analysis (RCDA) method, we are able to unequivocally show that ES VRH dominates and thus Coulomb interaction effects exist in our system at zero magnetic field. Transport data obtained in the intermediate and high field regimes also follow ES VRH based on the RCDA method. Our results suggest that Coulomb interaction effects can play an important role in disordered graphene.

原文English
頁(從 - 到)905-908
頁數4
期刊Solid State Communications
152
發行號10
DOIs
出版狀態Published - 2012 五月

All Science Journal Classification (ASJC) codes

  • 化學 (全部)
  • 凝聚態物理學
  • 材料化學

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