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2006 | 110 | 2 | 255-262
Article title

Carrier Density Control by Illumination in Surface Doped, p-Type (Cd,Mn)Te Quantum Wells

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EN
Abstracts
EN
We report both decrease and increase in the 2D carrier gas density in a simple (Cd,Mn)Te/(Cd,Mg)Te heterostructure with (Cd,Mn)Te quantum well. The two effects were achieved by light with different photon energies. The quantum wells were 10 nm wide with 2D hole gas supplied by surface states. For the sample with 25 nm cap layer thickness, it was possible to tune the hole gas concentration from almost empty well (hole density below 1×10^{10} cm^{-2}) to 45×10^{10} cm^{-2}. The illumination with 425 nm wavelength almost doubled the hole gas density from the initial 24×10^{10} cm^{-2}. The depletion mechanism was most effective for illumination with the orange (575 nm) light.
Keywords
EN
Publisher

Year
Volume
110
Issue
2
Pages
255-262
Physical description
Dates
published
2006-08
received
2006-06-17
Contributors
author
  • Institute of Experimental Physics, Warsaw University, Hożza 69, 00-681 Warsaw, Poland
  • Laboratoire de Spectrométrie Physique, CNRS et Université Joseph Fourier - Grenoble, B.P. 87, 38402 Saint Martin d'Héres Cedex, France
author
  • Institute of Experimental Physics, Warsaw University, Hożza 69, 00-681 Warsaw, Poland
  • Laboratoire de Spectrométrie Physique, CNRS et Université Joseph Fourier - Grenoble, B.P. 87, 38402 Saint Martin d'Héres Cedex, France
author
  • Institute of Experimental Physics, Warsaw University, Hożza 69, 00-681 Warsaw, Poland
author
  • Laboratoire de Spectrométrie Physique, CNRS et Université Joseph Fourier - Grenoble, B.P. 87, 38402 Saint Martin d'Héres Cedex, France
author
  • Laboratoire de Spectrométrie Physique, CNRS et Université Joseph Fourier - Grenoble, B.P. 87, 38402 Saint Martin d'Héres Cedex, France
author
  • Laboratoire de Spectrométrie Physique, CNRS et Université Joseph Fourier - Grenoble, B.P. 87, 38402 Saint Martin d'Héres Cedex, France
author
  • Laboratoire Louis Néel, CNRS, B.P. 166, 38042 Grenoble Cedex, France
author
  • Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
author
  • Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
References
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Document Type
Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-appv110n221kz
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