Fractional Hofstadter States in Graphene on Hexagonal Boron Nitride

被引：12

作者：

DaSilva, Ashley M. ^{[1
]}

Jung, Jeil ^{[2
]}

MacDonald, Allan H. ^{[1
]}

机构：

[1] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA

[2] Univ Seoul, Dept Phys, Seoul 02504, South Korea

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 117卷 / 03期

关键词：

SCANNING-TUNNELING-MICROSCOPY; MAGNETIC-FIELDS; 2-DIMENSIONAL ELECTRONS; DIRAC FERMIONS; SUPERLATTICES; HIERARCHY; DYNAMICS;

D O I：

10.1103/PhysRevLett.117.036802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In fractionally filled Landau levels there is only a small energy difference between broken translational symmetry electron-crystal states and exotic correlated quantum fluid states. We show that the spatially periodic substrate interaction associated with the long period moire patterns present in graphene on nearly aligned hexagonal boron nitride tilts this close competition in favor of the former, explaining surprising recent experimental findings.

引用

页数：6

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