CAHA, Ondřej, Adam DUBROKA, Josef HUMLÍČEK, Václav HOLÝ, Hubert STEINER, M. UL-HASSAN, Jaime SANCHEZ-BARRIGA, Oliver RADER, T. N. STANISLAVCHUK, Andrei A. SIRENKO, Günther BAUER and Günter SPRINGHOLZ. Growth, Structure, and Electronic Properties of Epitaxial Bismuth Telluride Topological Insulator Films on BaF2 (111) Substrates. Crystal Growth & Design. Washington: American Chemical Society, 2013, vol. 13, No 8, p. 3365-3373. ISSN 1528-7483. Available from: https://dx.doi.org/10.1021/cg400048g.
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Basic information
Original name Growth, Structure, and Electronic Properties of Epitaxial Bismuth Telluride Topological Insulator Films on BaF2 (111) Substrates
Name in Czech Růst, strukturní a elektronové vlastnosti epitaxních vrstvy topologického izolátoru bismut teluridu deponované na BaF2 substrátech
Authors CAHA, Ondřej (203 Czech Republic, guarantor, belonging to the institution), Adam DUBROKA (203 Czech Republic, belonging to the institution), Josef HUMLÍČEK (203 Czech Republic, belonging to the institution), Václav HOLÝ (203 Czech Republic), Hubert STEINER (40 Austria), M. UL-HASSAN (40 Austria), Jaime SANCHEZ-BARRIGA (724 Spain), Oliver RADER (276 Germany), T. N. STANISLAVCHUK (840 United States of America), Andrei A. SIRENKO (840 United States of America), Günther BAUER (40 Austria) and Günter SPRINGHOLZ (40 Austria).
Edition Crystal Growth & Design, Washington, American Chemical Society, 2013, 1528-7483.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10302 Condensed matter physics
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 4.558
RIV identification code RIV/00216224:14740/13:00066623
Organization unit Central European Institute of Technology
Doi http://dx.doi.org/10.1021/cg400048g
UT WoS 000323020000013
Keywords (in Czech) Diracův kužel; tenké vrstvy; povrchové stavy; pásová struktura; BI2TE3; BI2SE3; RAMAN; SELENID;
Keywords in English SINGLE DIRAC CONE; THIN-FILMS; SURFACE-STATES; BAND-STRUCTURE; BI2TE3 FILMS; BI2SE3; RAMAN; SELENIDE;
Tags rivok
Tags International impact, Reviewed
Changed by Changed by: doc. Mgr. Adam Dubroka, Ph.D., učo 4408. Changed: 13/3/2018 16:08.
Abstract
Epitaxial growth of topological insulator bismuth telluride by molecular beam epitaxy onto BaF2 (111) substrates is studied using Bi2Te3 and Te as source materials. By changing the beam flux composition, different stoichiometric phases are obtained, resulting in high quality Bi2Te3 and Bi1Te1 epilayers as shown by Raman spectroscopy and high-resolution X-ray diffraction. From X-ray reciprocal space mapping, the residual strain, as well as size of coherently scattering domains are deduced. The Raman modes for the two different phases are identified and the dielectric functions derived from spectroscopic ellipsometry investigations. Angular resolved photoemission reveals topologically protected surface states of the Bi2Te3 epilayers. Thus, BaF2 is a perfectly suited substrate material for the bismuth telluride compounds.
Abstract (in Czech)
Epitaxní vrstvy teluridů bismutu byly připraveny molekulární epitaxí z Bi2Te3 a Te. Změna toku jednotlivých složek ovlivnovala strukturu vrstev, která byla zkoumána pomocí rtg difrakce, Ramanské spektroskopie.
Links
ED1.1.00/02.0068, research and development projectName: CEITEC - central european institute of technology
GAP204/12/0595, research and development projectName: Elektronové a strukturní vlastnosti trojrozměrných topologických izolantů
Investor: Czech Science Foundation
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