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...
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| 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| id |
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irk-123456789-1183792017-05-31T03:03:56Z Polaron density of states of AlAs/GaAs/AlAs and PbS/PbTe/PbS type quantum well Boichuk, V.I. Borusevych, V.A. Kogoutiouk, I.P. 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. На основi адiабатичного наближення та варiацiйного методу Рiтца дослiджено енергетичний спектр полярона квазiдвовимiрної гетеросистеми AlAs/GaAs/AlAs та PbTe/PbS/PbTe в залежностi вiд хвильового вектора. Враховано взаємодiю електрона як з обмеженими, так i з поверхневими та напiвобмеженими фононами. Використовуючи варiацiйний метод Лi-Лоу-Пайнса, зроблено порiвняльний аналiз енергетичного спектру полярона у гетероструктурах iз скiнченним та нескiнченним розривом енергетичних зон на межi подiлу. Дослiджено залежнiсть густини станiв поляронiв вiд енергiї в областi енергiй, менших за енергiю фононiв. Визначено внесок у густину станiв кожної з фононних вiток. Проведено порiвняльний аналiз для двох гетероструктур AlAs/GaAs/AlAs та PbTe/PbS/PbTe. 2007 Article 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. 1607-324X PACS: 63.20.Kr, 79.60.Jv DOI:10.5488/CMP.10.2.219 http://dspace.nbuv.gov.ua/handle/123456789/118379 en Condensed Matter Physics Інститут фізики конденсованих систем НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
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. |
| format |
Article |
| author |
Boichuk, V.I. Borusevych, V.A. Kogoutiouk, I.P. |
| spellingShingle |
Boichuk, V.I. Borusevych, V.A. Kogoutiouk, I.P. Polaron density of states of AlAs/GaAs/AlAs and PbS/PbTe/PbS type quantum well Condensed Matter Physics |
| author_facet |
Boichuk, V.I. Borusevych, V.A. Kogoutiouk, I.P. |
| author_sort |
Boichuk, V.I. |
| title |
Polaron density of states of AlAs/GaAs/AlAs and PbS/PbTe/PbS type quantum well |
| title_short |
Polaron density of states of AlAs/GaAs/AlAs and PbS/PbTe/PbS type quantum well |
| title_full |
Polaron density of states of AlAs/GaAs/AlAs and PbS/PbTe/PbS type quantum well |
| title_fullStr |
Polaron density of states of AlAs/GaAs/AlAs and PbS/PbTe/PbS type quantum well |
| title_full_unstemmed |
Polaron density of states of AlAs/GaAs/AlAs and PbS/PbTe/PbS type quantum well |
| title_sort |
polaron density of states of alas/gaas/alas and pbs/pbte/pbs type quantum well |
| publisher |
Інститут фізики конденсованих систем НАН України |
| publishDate |
2007 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/118379 |
| citation_txt |
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. |
| series |
Condensed Matter Physics |
| work_keys_str_mv |
AT boichukvi polarondensityofstatesofalasgaasalasandpbspbtepbstypequantumwell AT borusevychva polarondensityofstatesofalasgaasalasandpbspbtepbstypequantumwell AT kogoutioukip polarondensityofstatesofalasgaasalasandpbspbtepbstypequantumwell |
| first_indexed |
2023-10-18T20:32:00Z |
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2023-10-18T20:32:00Z |
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