Pressure dependence of donor excitation spectra in AlSb

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We have investigated the behavior of ground to bound excited-state electronic transitions of Se and Te donors in AlSb as a function of hydrostatic pressure. Using broadband far-infrared Fourier transform spectroscopy, we observe qualitatively different behaviors of the electronic transition energies of the two donors. While the pressure derivative of the Te transition energy is small and constant, as might be expected for a shallow donor, the pressure derivatives of the Se transition energies are quadratic and large at low pressures, indicating that Se is actually a deep donor. In addition, at pressures between 30 and 50 kbar, we observe ... continued below

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31 pages

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Hsu, L.; McCluskey, M.D. & Haller, E.E. January 16, 2002.

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We have investigated the behavior of ground to bound excited-state electronic transitions of Se and Te donors in AlSb as a function of hydrostatic pressure. Using broadband far-infrared Fourier transform spectroscopy, we observe qualitatively different behaviors of the electronic transition energies of the two donors. While the pressure derivative of the Te transition energy is small and constant, as might be expected for a shallow donor, the pressure derivatives of the Se transition energies are quadratic and large at low pressures, indicating that Se is actually a deep donor. In addition, at pressures between 30 and 50 kbar, we observe evidence of an anti-crossing between one of the selenium electronic transitions and a two-phonon mode.

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31 pages

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OSTI as DE00836791

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  • Journal Name: Physical Review B; Journal Volume: 67; Journal Issue: 3; Other Information: Submitted to Physical Review B: Volume 67, No.3; Journal Publication Date: 1/15/2003

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  • Report No.: LBNL-49415
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 836791
  • Grant Number: DMR-0109844
  • Grant Number: DMR-9901625
  • Archival Resource Key: ark:/67531/metadc785302

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Office of Scientific & Technical Information Technical Reports

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  • January 16, 2002

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  • Dec. 3, 2015, 9:30 a.m.

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  • June 15, 2016, 1:22 p.m.

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Hsu, L.; McCluskey, M.D. & Haller, E.E. Pressure dependence of donor excitation spectra in AlSb, article, January 16, 2002; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc785302/: accessed June 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.