Ontology highlight
ABSTRACT:
SUBMITTER: Hoefer K
PROVIDER: S-EPMC4210329 | biostudies-literature | 2014 Oct
REPOSITORIES: biostudies-literature
Proceedings of the National Academy of Sciences of the United States of America 20141007 42
Topological insulators represent a novel state of matter with surface charge carriers having a massless Dirac dispersion and locked helical spin polarization. Many exciting experiments have been proposed by theory, yet their execution has been hampered by the extrinsic conductivity associated with the unavoidable presence of defects in Bi2Te3 and Bi2Se3 bulk single crystals, as well as impurities on their surfaces. Here we present the preparation of Bi2Te3 thin films that are insulating in the b ...[more]