Polaron density of states of AlAs/GaAs/AlAs and PbS/PbTe/PbS type quantum well
Polaron energy spectrum of AlAs/GaAs/AlAs and PbS/PbTe/PbS quasi two-dimensional heterostructure as a function of the wave-vector is investigated based on the adiabatic approximation and the Ritz variational technique. The electron interaction with confined, interface and half-space phonons is tak...
Збережено в:
| Дата: | 2007 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2007
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/118379 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Polaron density of states of AlAs/GaAs/AlAs and PbS/PbTe/PbS type quantum well / V.I. Boichuk, V.A. Borusevych, I.P. Kogoutiouk // Condensed Matter Physics. — 2007. — Т. 10, № 2(50). — С. 219-228. — Бібліогр.: 25 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | Polaron energy spectrum of AlAs/GaAs/AlAs and PbS/PbTe/PbS quasi two-dimensional heterostructure as
a function of the wave-vector is investigated based on the adiabatic approximation and the Ritz variational
technique. The electron interaction with confined, interface and half-space phonons is taken into account. A
comparative analysis of the polaron energy spectrum in heterostructures with a finite and infinite breakdown
of energy bands at the interface is performed by means of the Li-Lou-Pines variational method. The polaron
density of states dependence as a function of energies with the values less than phonon energies is studied.
The contribution of each phonon branch to the density of states is determined. A comparative analysis is made
for two AlAs/GaAs/AlAs and PbS/PbTe/PbS heterostructures. |
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