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Infrared/terahertz spectra of the photogalvanic effect in (Bi,Sb)Te based three-dimensional topological insulators

Plank, Helene, Pernul, Johanna, Gebert, Sebastian, Danilov, Sergey N., König-Otto, J., Winnerl, S., Lanius, M., Kampmeier, J., Mussler, G., Aguilera, I., Grützmacher, D. and Ganichev, Sergey (2018) Infrared/terahertz spectra of the photogalvanic effect in (Bi,Sb)Te based three-dimensional topological insulators. Phys. Rev. Materials 2, 024202.

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Date of publication of this fulltext: 18 Jul 2019 13:39

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Other URL: https://link.aps.org/doi/10.1103/PhysRevMaterials.2.024202, https://journals.aps.org/prmaterials/abstract/10.1103/PhysRevMaterials.2.024202


Abstract

We report on the systematic study of infrared/terahertz spectra of photocurrents in (Bi,Sb)Te based three-dimensional topological insulators. We demonstrate that in a wide range of frequencies, ranging from fractions up to tens of terahertz, the photocurrent is caused by the linear photogalvanic effect (LPGE) excited in the surface states. The photocurrent spectra reveal that at low frequencies ...

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Item type:Article
Date:February 2018
Institutions:Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev
Projects:SFB 1277: Emergente relativistische Effekte in der Kondensierten Materie: Von grundlegenden Aspekten zu elektronischer Funktionalität, SPP 1666, K-NW-2013-247
Identification Number:
ValueType
10.1103/PhysRevMaterials.2.024202DOI
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:40541
Owner only: item control page

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