Archive: 2005 - Moldavian Journal of the Physical Sciences

05 Nov 2005

2005
V. 4
3
(p.304 - 312)

Optical deformation potentials for PbSe and PbTe

Authors:

Zasaviţchii, I.; deAndradaeSilva, E.; Abramof, E.; McCann, P.

Summary:

The values of optical deformation potentials (Du and Dd) for PbSe and PbTe are analyzed using absorption, luminescence and X-ray diffraction data on high quality, deep quantum well PbSe/PbSrSe and PbTe/PbEuTe structures. It is important for these evaluations to use the value of isotropic deformation potential (Diso) which is determined from the low temperature hydrostatic pressure experiments and the intervalley splitting which was determined from differential absorption spectroscopy. The fitting procedure was done using an accurate k·p model for the band structure near the fundamental gap including anisotropy, multi-valley, and band nonparabolicity effects. We find the new optical deformation potential values at 4 K: Du = - 0.2 and – 0.5 eV, and Dd = 5.3 and 3.5 eV for PbSe and PbTe, respectively.

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to use  the value of  isotropic deformation potential (Diso) which  is determined  from  the  low 
temperature  hydrostatic  pressure  experiments  and  the  intervalley  splitting  which  was 
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analyzed  using  absorption,  luminescence  and X-ray  diffraction  data  on  high  quality,  deep 
quantum well PbSe/PbSrSe and PbTe/PbEuTe structures. It is important for these evaluations 
to use  the value of  isotropic deformation potential (Diso) which  is determined  from  the  low 
temperature  hydrostatic  pressure  experiments  and  the  intervalley  splitting  which  was 
determined from differential absorption spectroscopy.  The fitting procedure was done using 
an accurate k·p model for the band structure near the fundamental gap including anisotropy, 
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respectively. </dc:description>
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<dc:title>Optical deformation potentials for PbSe and PbTe</dc:title>
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“ ... ”

SM ISO690:2012

ZASAVIŢCHII, I.; DEANDRADAESILVA, E.; ABRAMOF, E.; MCCANN, P.. Optical deformation potentials for PbSe and PbTe. In: Moldavian Journal of the Physical Sciences. 2005, nr. 3(4), pp. 304-312. ISSN 1810-648X.