Determination of the energy band gap of Bi2Se3

Determination of the energy band gap of Bi2Se3

Abstract Despite intensive investigations of Bi2Se3 in past few years, the size and nature of the bulk energy band gap of this well-known 3D topological insulator still remain unclear. Here we report on a combined magneto-transport, photoluminescence and infrared transmission study of Bi2Se3, which...

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Autores principales: G. Martinez, B. A. Piot, M. Hakl, M. Potemski, Y. S. Hor, A. Materna, S. G. Strzelecka, A. Hruban, O. Caha, J. Novák, A. Dubroka, Č. Drašar, M. Orlita
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2017
Materias:
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Science
Q
Acceso en línea:https://doaj.org/article/7e81b95e3610416fbb61cb77ffc95248
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spelling oai:doaj.org-article:7e81b95e3610416fbb61cb77ffc952482021-12-02T16:07:48ZDetermination of the energy band gap of Bi2Se310.1038/s41598-017-07211-x2045-2322https://doaj.org/article/7e81b95e3610416fbb61cb77ffc952482017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07211-xhttps://doaj.org/toc/2045-2322Abstract Despite intensive investigations of Bi2Se3 in past few years, the size and nature of the bulk energy band gap of this well-known 3D topological insulator still remain unclear. Here we report on a combined magneto-transport, photoluminescence and infrared transmission study of Bi2Se3, which unambiguously shows that the energy band gap of this material is direct and reaches E g  = (220 ± 5) meV at low temperatures.G. MartinezB. A. PiotM. HaklM. PotemskiY. S. HorA. MaternaS. G. StrzeleckaA. HrubanO. CahaJ. NovákA. DubrokaČ. DrašarM. OrlitaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-5 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
G. Martinez
B. A. Piot
M. Hakl
M. Potemski
Y. S. Hor
A. Materna
S. G. Strzelecka
A. Hruban
O. Caha
J. Novák
A. Dubroka
Č. Drašar
M. Orlita
Determination of the energy band gap of Bi2Se3
description Abstract Despite intensive investigations of Bi2Se3 in past few years, the size and nature of the bulk energy band gap of this well-known 3D topological insulator still remain unclear. Here we report on a combined magneto-transport, photoluminescence and infrared transmission study of Bi2Se3, which unambiguously shows that the energy band gap of this material is direct and reaches E g  = (220 ± 5) meV at low temperatures.
format article
author G. Martinez
B. A. Piot
M. Hakl
M. Potemski
Y. S. Hor
A. Materna
S. G. Strzelecka
A. Hruban
O. Caha
J. Novák
A. Dubroka
Č. Drašar
M. Orlita
author_facet G. Martinez
B. A. Piot
M. Hakl
M. Potemski
Y. S. Hor
A. Materna
S. G. Strzelecka
A. Hruban
O. Caha
J. Novák
A. Dubroka
Č. Drašar
M. Orlita
author_sort G. Martinez
title Determination of the energy band gap of Bi2Se3
title_short Determination of the energy band gap of Bi2Se3
title_full Determination of the energy band gap of Bi2Se3
title_fullStr Determination of the energy band gap of Bi2Se3
title_full_unstemmed Determination of the energy band gap of Bi2Se3
title_sort determination of the energy band gap of bi2se3
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/7e81b95e3610416fbb61cb77ffc95248
work_keys_str_mv AT gmartinez determinationoftheenergybandgapofbi2se3
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AT mpotemski determinationoftheenergybandgapofbi2se3
AT yshor determinationoftheenergybandgapofbi2se3
AT amaterna determinationoftheenergybandgapofbi2se3
AT sgstrzelecka determinationoftheenergybandgapofbi2se3
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AT adubroka determinationoftheenergybandgapofbi2se3
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