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Point and structural defects in Bi2PbxTe3 single crystals
Authors: Plecháček Tomáš | Navrátil Jiří | Horák Jaromír | Bachan David | Krejčová Anna | Lošťák Petr
Year: 2007
Type of publication: článek v odborném periodiku
Name of source: Solid State Ionics
Publisher name: Elsevier Science BV
Place: Amsterdam
Page from-to: 3513-3519
Titles:
Language Name Abstract Keywords
cze Point and structural defects in Bi2PbxTe3 single crystals The study of the doping proces of Bi2Te3 by Pb atoms in wide range of lead concentration revealed two distinct areas of influence of the incorporated Pb atoms on changes in free carrier concentration. While at lower concentration of incorporated Pb the ratio of generated holes to one incorporated Pb atom fals from value of 1.6 down to 0.55, at higher concentration the value stays constant. The observed behaviour of seeming electrical inactivity of the incorporated Pb atoms is explained by a point defect model taking into account the interaction between the entering Pb atoms and native lattice defects of Bi2Te3 crystal structure.
eng Point and structural defects in Bi2PbxTe3 single crystals The study of the doping proces of Bi2Te3 by Pb atoms in wide range of lead concentration revealed two distinct areas of influence of the incorporated Pb atoms on changes in free carrier concentration. While at lower concentration of incorporated Pb the ratio of generated holes to one incorporated Pb atom fals from value of 1.6 down to 0.55, at higher concentration the value stays constant. The observed behaviour of seeming electrical inactivity of the incorporated Pb atoms is explained by a point defect model taking into account the interaction between the entering Pb atoms and native lattice defects of Bi2Te3 crystal structure. Bismuth telluride Pb doping Point and structural defects