Mechanism of terahertz photoconductivity in semimetallic HgTe/CdHgTe quantum wells

Journal Article · Tue May 15 00:00:00 EDT 2012 · Semiconductors

DOI:https://doi.org/10.1134/S1063782612050247· OSTI ID:22038976

Mikhailov, N N ^[1]; Gouider, F ^[2]; Vasilyeva, G Yu ^[3]; Nachtwei, G ^[2]

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1. Russian Academy of Sciences, Rzhanov Institute of Semiconductor Physics, Siberian Branch (Russian Federation)
2. Institut fuer Angewandte Physik (Germany)
3. St. Petersburg State Polytechnic University (Russian Federation)

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.

• OSTI ID: 22038976
• Journal Information: Semiconductors, Journal Name: Semiconductors Journal Issue: 5 Vol. 46; ISSN SMICES; ISSN 1063-7826
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BOLOMETERS
CYCLOTRON RESONANCE
ELECTRON GAS
HEATING
MAGNETIC FIELDS
MERCURY TELLURIDES
PHOTOCONDUCTIVITY
QUANTUM WELLS