Article

International Journal of Infrared and Millimeter Waves

, Volume 16, Issue 4, pp 775-782

First online:

The control of gap width in the low-dimensional systems with charge density waves instability

  • A. I. DmitrievAffiliated withInstitute of Material Problems, Ukrainian National Academy of Sciences
  • , G. V. LashkarevAffiliated withInstitute of Material Problems, Ukrainian National Academy of Sciences
  • , V. K. KiselyevAffiliated withInstitute of Radiophysics and Electronics, Ukrainian National Academy of Sciences
  • , V. K. KononenkoAffiliated withInstitute of Radiophysics and Electronics, Ukrainian National Academy of Sciences
  • , E. M. KuleshovAffiliated withInstitute of Radiophysics and Electronics, Ukrainian National Academy of Sciences

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Abstract

The strong photoeffect was discovered experimentally in InSe crystals at temperature 4.2 K as a result of laser radiation action at fixed wavelengths of 337 and 195 micron. Effect was explained with appearance of the gap in the continuum of conduction band. The photoeffect value was found to depend strongly on electric current through the crystal.

Key words

InSe crystal laser radiation photoeffect charge density waves