Czechoslovak Journal of Physics

, Volume 46, Supplement 5, pp 2855–2856 | Cite as

Ge films on GaAs: low-temperature electrical properties and application to cryogenic resistance temperature sensors

  • Vadim F. Mitin
  • Yurij A. Tkhorik
  • Eugene F. Venger
Thermometers and Detectors


This report presents our results of both investigation of electrical condution mechanisms in Ge films on GaAs at low temperatures and designing thin-film Ge resistance thermometers. The electrical properties of Ge films on GaAs are determined by potential fluctuations caused by random inhomogeneous distribution of impurities. At low temperatures the conduction through the localized states in the vicinity of the Fermi level prevails. In this report we discuss the electrical conduction mechanisms of such films. Three types (TTR-1, TTR-2 and TTR-3) of thin-film Ge thermometers were fabricated. These temperature sensors may be used in the temperature ranges 1.5 to 350, 77 to 400 and 200 to 450 K, respectively.


GaAs Fermi Level Potential Fluctuation Electrical Conduction Mechanism Cryogenic Engineer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. [1]
    V. Mitin Proc. 15th International Cryogenic Engineering Conference (ICEC 15), Genova, Italy, June 7–10, 1994. Cryogenics 34 (1994) 437–440.CrossRefADSGoogle Scholar
  2. [2]
    V.F. Mitin and Yu.A. Tkhorik. Proc. 20th International Conference on Microelectronics (MIEL'95), Vol. 2, Nis, Serbia, 12–14 September, 1995, pp. 553–557.CrossRefGoogle Scholar
  3. [3]
    N.F. Mott, Phil. Mag. 19 (1969) 835–852.ADSGoogle Scholar
  4. [4]
    B.I. Shklovskii, Fiz. Tekhn. Poluprov. 7 (1973) 112–118.Google Scholar

Copyright information

© Institute of Physics, Acad. Sci. CR 1996

Authors and Affiliations

  • Vadim F. Mitin
    • 1
  • Yurij A. Tkhorik
    • 1
  • Eugene F. Venger
    • 1
  1. 1.Institute of Semiconductor Physics of the National Academy of Sciences of UkraineKiev-28Ukraine

Personalised recommendations