HUMLÍČEK, Josef, Dušan HEMZAL, Adam DUBROKA, Ondřej CAHA, Hubert STEINER, Gunther BAUER a Guenther SPRINGHOLZ. Raman and interband optical spectra of epitaxial layers of the topological insulators Bi2Te3 and Bi2Se3 on BaF2 substrates. Physica Scripta. Bristol (England): Royal Swedish Academy of Sciences, 2014, T162, September, s. "nestránkováno", 4 s. ISSN 0031-8949. Dostupné z: https://dx.doi.org/10.1088/0031-8949/2014/T162/014007. |
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@article{1215247, author = {Humlíček, Josef and Hemzal, Dušan and Dubroka, Adam and Caha, Ondřej and Steiner, Hubert and Bauer, Gunther and Springholz, Guenther}, article_location = {Bristol (England)}, article_number = {September}, doi = {http://dx.doi.org/10.1088/0031-8949/2014/T162/014007}, keywords = {bismuth tellurides; bismuth selenides; Raman spectra; ellipsometric spectra; epitaxial layers}, language = {eng}, issn = {0031-8949}, journal = {Physica Scripta}, title = {Raman and interband optical spectra of epitaxial layers of the topological insulators Bi2Te3 and Bi2Se3 on BaF2 substrates}, url = {http://iopscience.iop.org/1402-4896/2014/T162/014007/article}, volume = {T162}, year = {2014} }
TY - JOUR ID - 1215247 AU - Humlíček, Josef - Hemzal, Dušan - Dubroka, Adam - Caha, Ondřej - Steiner, Hubert - Bauer, Gunther - Springholz, Guenther PY - 2014 TI - Raman and interband optical spectra of epitaxial layers of the topological insulators Bi2Te3 and Bi2Se3 on BaF2 substrates JF - Physica Scripta VL - T162 IS - September SP - "nestránkováno" EP - "nestránkováno" PB - Royal Swedish Academy of Sciences SN - 00318949 KW - bismuth tellurides KW - bismuth selenides KW - Raman spectra KW - ellipsometric spectra KW - epitaxial layers UR - http://iopscience.iop.org/1402-4896/2014/T162/014007/article L2 - http://iopscience.iop.org/1402-4896/2014/T162/014007/article N2 - We report results of Raman and ellipsometric spectroscopy of the topological insulators Bi2Te3 and Bi2Se3 grown by molecular beam epitaxy on BaF2 (111) substrates. Surfaces and interfaces of the films are probed by Raman scattering from the front and back sides of the samples, which is possible owing to the transparent substrate. Surface modifications induced by intense illumination with exciting laser light have been detected, with excess tellurium at the surface during and after exposure. We also report data for thin epilayers containing a fractional number of unit cells and/or incomplete Bi2Te3 and Bi2Se3 quintuples. We have used spectroellipsometric measurements to obtain response functions and have derived the penetration depth of light in the 1.0–6.5 eV range. ER -
HUMLÍČEK, Josef, Dušan HEMZAL, Adam DUBROKA, Ondřej CAHA, Hubert STEINER, Gunther BAUER a Guenther SPRINGHOLZ. Raman and interband optical spectra of epitaxial layers of the topological insulators Bi2Te3 and Bi2Se3 on BaF2 substrates. \textit{Physica Scripta}. Bristol (England): Royal Swedish Academy of Sciences, 2014, T162, September, s.~''nestránkováno'', 4 s. ISSN~0031-8949. Dostupné z: https://dx.doi.org/10.1088/0031-8949/2014/T162/014007.
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