Competing Weak Localization and Weak Antilocalization in Ultrathin Topological Insulators
نویسندگان
چکیده
منابع مشابه
Competing weak localization and weak antilocalization in ultrathin topological insulators.
We demonstrate evidence of a surface gap opening in topological insulator (TI) thin films of (Bi(0.57)Sb(0.43))(2)Te(3) below six quintuple layers through transport and scanning tunneling spectroscopy measurements. By effective tuning the Fermi level via gate-voltage control, we unveil a striking competition between weak localization and weak antilocalization at low magnetic fields in nonmagnet...
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ژورنال
عنوان ژورنال: Nano Letters
سال: 2012
ISSN: 1530-6984,1530-6992
DOI: 10.1021/nl303424n