Determination of the energy band gap of Bi2Se3

Martinez, G.; Piot, B. A.; Hakl, M.; Potemski, M.; Hor, Y. S.; Materna, A.; Strzelecka, S. G.; Hruban, A.; Caha, O.; Novak, J.; Dubroka, A.; Drašar, Čestmír; Orlita, M.

Digitální knihovna UPCE
→
Univerzita Pardubice
→
Publikační činnost akademických pracovníků UPCE / UPCE Research Outputs
→
Zobrazit záznam

Determination of the energy band gap of Bi2Se3

Martinez, G.; Piot, B. A.; Hakl, M.; Potemski, M.; Hor, Y. S.; Materna, A.; Strzelecka, S. G.; Hruban, A.; Caha, O.; Novak, J.; Dubroka, A.; Drašar, Čestmír; Orlita, M.

10.1038/s41598-017-07211-x

Soubory tohoto záznamu

URI: https://hdl.handle.net/10195/72546

Datum publikování: 2017

Typ dokumentu: article

Abstrakt:

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 show that the energy band gap of this material is direct and reaches Eg = (220 +/- 5) meV at low temperatures.

Zobrazit celý záznam