• 文献标题:   Explanation of an unexpected occurrence of nu = +/- 1/2 fractional quantum Hall effect states in monolayer graphene
  • 文献类型:   Article
  • 作  者:   JACAK JE
  • 作者关键词:   monolayer graphene, fractional quantum hall effect fqhe, even denominator filling rate, beyond composite fermion
  • 出版物名称:   JOURNAL OF PHYSICSCONDENSED MATTER
  • ISSN:   0953-8984 EI 1361-648X
  • 通讯作者地址:   Wroclaw Univ Sci Technol
  • 被引频次:   3
  • DOI:   10.1088/1361-648X/ab3998
  • 出版年:   2019

▎ 摘  要

Recent experiment reveals the appearance of incompressible fractional quantum Ilan effect states in monolayer graphene at nu = +/- 1/2 and +/- 1/4,+/- 3/4 substituting the compressible Hall metal states at these fillings in the lowest Landau level in a narrow magnetic field window depending on the sample parameters. Simultaneously, none such behavior has been observed either for nu = +/- 3/2 or +/- 5/4, +/- 7/4. We propose an explanation of these observations in terms of homotopy of monolayer graphene in consistence with a general theory of correlated states in planar Hall systems.