TY  - JOUR
AU  - Silkin, I. V.
AU  - Koroteev, Yu. M.
AU  - Eremeev, S. V.
AU  - Bihlmayer, G.
AU  - Chulkov, E. V.
TI  - Three- and Two-Dimensional Topogical Insulators in Pb2Sb2Te5, Pb2Bi2Te5, and Pb2Bi2Se5 Layered Compounds
JO  - JETP letters
VL  - 94
SN  - 0021-3640
CY  - Heidelberg [u.a.]
PB  - Springer
M1  - PreJuSER-16803
SP  - 217 - 221
PY  - 2011
N1  - Record converted from VDB: 12.11.2012
AB  - The electronic structure of ternary compounds Pb2Sb2Te5, Pb2Bi2Te5, and Pb2Bi2Se5, which have a layered structure that consists of nine-layer atomic blocks separated by van der Waals gaps, has been theoretically studied. It has been shown that all studied compounds are three-dimensional topological insulators. The possibility of the existence of a two-dimensional topological insulator has been found in ultrathin (0001) Pb2Sb2Te5 and Pb2Bi2Te5 films. Oscillations of the a"currency sign(2) topological invariant with an increase in the film thickness have been observed in the latter compound.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000295682200010
DO  - DOI:10.1134/S0021364011150112
UR  - https://juser.fz-juelich.de/record/16803
ER  -