This article is cited in 2 papers

Semiconductor structures, low-dimensional systems, quantum phenomena

Mechanism of terahertz photoconductivity in semimetallic HgTe/CdHgTe quantum wells

Yu. B. Vasil'ev^a, N. N. Mikhailov^b, F. Gouider^c, G. Yu. Vasil'eva^d, G. Nachtwei<sup>c

a</sup> Ioffe Institute, St. Petersburg
^b Rzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, Novosibirsk
^c Institut für Angewandte Physik, Braunschweig, D-38 106, Germany
^d Peter the Great St. Petersburg Polytechnic University

Abstract: Terahertz photoconductivity in magnetic fields in semimetallic HgTe/CdHgTe quantum wells has been studied. The main contribution to photoconductivity comes from a signal that appears as a result of electron-gas heating. It is shown that, with the cyclotron resonance conditions satisfied, the photoconductivity signal is composed of cyclotron-resonance and bolometric components. However, in this case too, the bolometric contribution predominates.

Received: 16.11.2011
Accepted: 21.11.2011

 English version: Semiconductors, 2012, 46:5, 655–658

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