Published in
IOP Publishing, Journal of Physics: Conference Series, (647), p. 012037, 2015
DOI: 10.1088/1742-6596/647/1/012037
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- [hal.archives-ouvertes.fr] | PDF
- [www.researchgate.net] | PDF
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Terahertz studies of 2D and 3D topological transitions
Journal article published in 2015 by
M. Marcinkiewicz,
F. Teppe,
C. Consejo,
N. Dyakonova,
W. Desrat 
,
D. Coquillat,
S. Ruffenach,
W. Knap,
N. N. Mikhailov,
S. A. Dvoretskii,
F. Gonzalez Posada,
J.-B. Rodriguez,
E. Tournié
,
D. Coquillat,
S. Ruffenach,
W. Knap,
N. N. Mikhailov,
S. A. Dvoretskii,
F. Gonzalez Posada,
J.-B. Rodriguez,
E. Tournié
This paper is made freely available by the publisher.
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Abstract
We report terahertz measurements on bulk HgCdTe crystals at the semiconductor- to-semimetal topological transition and InAs/GaSb inverted band structure quantum well. We show that physical parameters of these narrow gap systems driven in specific topological phases can be efficiently extracted by means of terahertz photoconductivity studies.