Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Infrared spectroscopic ellipsometry and optical spectroscopy of plasmons in classic 3D topological insulators. / Mamedov, Nazim T.; Alizade, Elvin H.; Jahangirli, Zakir A.; Aliev, Ziya S.; Abdullayev, Nadir A.; Mammadov, Samir N.; Amiraslanov, Imamaddin R.; Shim, Yong Gu; Wakita, Kazuki; Ragimov, Sadiyar S.; Bayramov, Ayaz I.; Babanly, Mahammad B.; Shikin, Alexander M.; Chulkov, Evgueni V.
в: Journal of Vacuum Science and Technology B: Nanotechnology and Microelectronics, Том 37, № 6, 062602, 01.11.2019.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Infrared spectroscopic ellipsometry and optical spectroscopy of plasmons in classic 3D topological insulators
AU - Mamedov, Nazim T.
AU - Alizade, Elvin H.
AU - Jahangirli, Zakir A.
AU - Aliev, Ziya S.
AU - Abdullayev, Nadir A.
AU - Mammadov, Samir N.
AU - Amiraslanov, Imamaddin R.
AU - Shim, Yong Gu
AU - Wakita, Kazuki
AU - Ragimov, Sadiyar S.
AU - Bayramov, Ayaz I.
AU - Babanly, Mahammad B.
AU - Shikin, Alexander M.
AU - Chulkov, Evgueni V.
PY - 2019/11/1
Y1 - 2019/11/1
N2 - Narrow bandgap Bi2Se3, Bi2Te3, and Sb2Te3, commonly referred to as classic 3D topological insulators, were studied at room temperature by spectroscopic ellipsometry and optical reflection spectroscopy over the mid-IR-near-infrared photon energy range. Complementarily, Hall measurements were performed. Plasmons in optical loss function and reflection coefficient were identified. The conventional approach based on the high frequency dielectric constant was shown to work well in the description of plasmons in Bi2Se3 and Sb2Te3 and to fail in the case of a similar compound, Bi2Te3. The obtained results are discussed in terms of single- and multivalley approaches to the studied samples with taking the details of the calculated band structure into account.
AB - Narrow bandgap Bi2Se3, Bi2Te3, and Sb2Te3, commonly referred to as classic 3D topological insulators, were studied at room temperature by spectroscopic ellipsometry and optical reflection spectroscopy over the mid-IR-near-infrared photon energy range. Complementarily, Hall measurements were performed. Plasmons in optical loss function and reflection coefficient were identified. The conventional approach based on the high frequency dielectric constant was shown to work well in the description of plasmons in Bi2Se3 and Sb2Te3 and to fail in the case of a similar compound, Bi2Te3. The obtained results are discussed in terms of single- and multivalley approaches to the studied samples with taking the details of the calculated band structure into account.
UR - http://www.scopus.com/inward/record.url?scp=85075269765&partnerID=8YFLogxK
U2 - 10.1116/1.5122776
DO - 10.1116/1.5122776
M3 - Article
AN - SCOPUS:85075269765
VL - 37
JO - Journal of Vacuum Science and Technology B
JF - Journal of Vacuum Science and Technology B
SN - 2166-2746
IS - 6
M1 - 062602
ER -
ID: 61016565