Crystal growth of Bi2Te3 and noble cleaved (0001) surface properties
authors Atuchin, VV; Golyashov, VA; Kokh, KA; Korolkov, IV; Kozhukhov, AS; Kruchinin, VN; Loshkarev, ID; Pokrovsky, LD; Prosvirin, IP; Romanyuk, KN; Tereshchenko, OE
nationality International
journal JOURNAL OF SOLID STATE CHEMISTRY
author keywords Bi2Se3; Bridgman technique; Cleavage; XRD; RHEED; AFM; STM; SE; XPS
keywords RAY PHOTOELECTRON-SPECTROSCOPY; BI2SE3 SINGLE-CRYSTALS; ROTATING HEAT FIELD; TOPOLOGICAL-INSULATOR; THERMOELECTRIC PROPERTIES; ELECTRONIC-STRUCTURE; DIRAC CONE; HYDROTHERMAL SYNTHESIS; OPTICAL-PROPERTIES; VAPOR-DEPOSITION
abstract A high quality Bi2Te3 crystal has been grown by Bridgman method with the use of rotating heat field. The phase purity and bulk structural quality of the crystal have been verified by XRD analysis and rocking curve observation. The atomically smooth Bi2Te3(0001) surface with an excellent crystallographic quality is formed by cleavage in the air. The chemical and microstructural properties of the surface have been evaluated with RHEED, AFM, STM, SE and XPS. The Bi2Te3(0001) cleaved surface is formed by atomically smooth terraces with the height of the elemental step of similar to 1.04 +/- 0.1 nm, as estimated by AFM. There is no surface oxidation process detected over a month keeping in the air at normal conditions, as shown by comparative core level photoelectron spectroscopy. (C) 2015 Published by Elsevier Inc.
publisher ACADEMIC PRESS INC ELSEVIER SCIENCE
issn 0022-4596
year published 2016
volume 236
beginning page 203
ending page 208
digital object identifier (doi) 10.1016/j.jssc.2015.07.031
web of science category Chemistry, Inorganic & Nuclear; Chemistry, Physical
subject category Chemistry
unique article identifier WOS:000372672900026
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