Sub-terahertz photoconductivity of HgxCd1−xTe crystals with composition close to semiconductor-to-semimetal topological transition

Author

Consejo, C. ; Teppe, F. ; Dyakonova, N. ; Desrat, W. ; Ruffenach, S. ; Coquillat, Dominique ; Knap, Wojciech ; Zholudev, M. ; Rumyantsev, V. ; Gavrilenko, V. ; Morozov, S. ; Mikhailov, N.N. ; Dvoretskii, S.A.

Author_Institution

L2C, Univ. Montpellier 2, Montpellier, France

fYear

2014

fDate

14-19 Sept. 2014

Firstpage

1

Lastpage

2

Abstract

We report on sub-Terahertz photoconductivity of bulk Hg_xCd_1-xTe crystals with composition close to semiconductor-to-semimetal topological transition. Low magnetic field Shubnikov-de Hass like oscillations were observed with a period which does not depend on the incident frequency. Moreover, anomalous B-periodic oscillations were also observed at higher magnetic fields.

Keywords

II-VI semiconductors; Shubnikov-de Haas effect; cadmium compounds; mercury compounds; metal-insulator transition; oscillations; photoconductivity; wide band gap semiconductors; Hg_xCd_1-xTe; anomalous B-periodic oscillations; bulk crystals; low magnetic field Shubnikov-de Hass like oscillations; semiconductor-to-semimetal topological transition; subterahertz photoconductivity; Cadmium; Magnetic fields; Oscillators; Photoconductivity; Physics; Semiconductor device measurement; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on

Conference_Location

Tucson, AZ

Type

conf

DOI

10.1109/IRMMW-THz.2014.6956246

Filename

6956246