Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
559 3 |
Ultima descărcare din IBN: 2023-06-30 16:18 |
SM ISO690:2012 ZASAVITSKIY, 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. |
EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
Moldavian Journal of the Physical Sciences | ||||||
Numărul 3(4) / 2005 / ISSN 1810-648X /ISSNe 2537-6365 | ||||||
|
||||||
Pag. 304-312 | ||||||
|
||||||
Descarcă PDF | ||||||
Rezumat | ||||||
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. |
||||||
|