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Author Atuchin, V. V. ♦ Golyashov, V. A. ♦ Kokh, K. A. ♦ Korolkov, I. V. ♦ Kozhukhov, A. S. ♦ Kruchinin, V. N. ♦ Loshkarev, I. D. ♦ Pokrovsky, L. D. ♦ Prosvirin, I. P.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ♦ ATOMIC FORCE MICROSCOPY ♦ BISMUTH SELENIDES ♦ BISMUTH TELLURIDES ♦ BRIDGMAN METHOD ♦ CLEAVAGE ♦ CRYSTALLOGRAPHY ♦ CRYSTALS ♦ ELECTRON DIFFRACTION ♦ IMPURITIES ♦ NEUTRON DIFFRACTION ♦ OXIDATION ♦ SCANNING TUNNELING MICROSCOPY ♦ SURFACE PROPERTIES ♦ SURFACES ♦ X-RAY DIFFRACTION ♦ X-RAY PHOTOELECTRON SPECTROSCOPY
Abstract A high quality Bi{sub 2}Te{sub 3} 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 Bi{sub 2}Te{sub 3}(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 Bi{sub 2}Te{sub 3}(0001) cleaved surface is formed by atomically smooth terraces with the height of the elemental step of ~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. - Graphical abstract: A high quality Bi{sub 2}Te{sub 3} crystal has been grown by Bridgman method with the use of rotating heat field and the Bi{sub 2}Te{sub 3}(0001) cleaved surface has been evaluated with RHEED, AFM, STM, SE and XPS. - Highlights: • High-quality Bi{sub 2}Te{sub 3} crystal of 10 mm in diameter and 50 mm long have been grown. • The high-purity cleaved Bi{sub 2}Te{sub 3}(0001) surface has been evaluated by RHEED, AFM, STM and XPS methods. • The Bi{sub 2}Te{sub 3} surface covered by atomically smooth (0001) terraces is chemically stable for a long time.
ISSN 00224596
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-04-15
Publisher Place United States
Journal Journal of Solid State Chemistry
Volume Number 236


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