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  • Title: Explanation of an unexpected occurrence of [Formula: see text] fractional quantum Hall effect states in monolayer graphene.
    Author: Jacak JE.
    Journal: J Phys Condens Matter; 2019 Nov 27; 31(47):475601. PubMed ID: 31394521.
    Abstract:
    Recent experiment reveals the appearance of incompressible fractional quantum Hall effect states in monolayer graphene at [Formula: see text] and [Formula: see text] [Formula: see text], [Formula: see text] [Formula: see text] 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 [Formula: see text] or [Formula: see text] [Formula: see text], [Formula: see text] [Formula: see text]. 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.
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