Generation of coherent confined acoustic phonons by drifting electrons in quantum wire
We developed a quantum theory of generation of coherent confined acoustic phonons by one-dimensional electrons drifting in a quantum wire. A general formula for the factor of amplification of the phonon flux, α, is derived. When the electron drift velocity, Vd, is greater than the sound phase veloci...
Збережено в:
| Дата: | 2000 |
|---|---|
| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
2000
|
| Назва видання: | Semiconductor Physics Quantum Electronics & Optoelectronics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/121217 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Generation of coherent confined acoustic phonons by drifting electrons in quantum wire / A.A. Demidenko, V.A. Kochelap // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2000. — Т. 3, № 4. — С. 432-437. — Бібліогр.: 13 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
irk-123456789-121217 |
|---|---|
| record_format |
dspace |
| spelling |
irk-123456789-1212172017-06-14T03:07:28Z Generation of coherent confined acoustic phonons by drifting electrons in quantum wire Demidenko, A.A. Kochelap, V.A. We developed a quantum theory of generation of coherent confined acoustic phonons by one-dimensional electrons drifting in a quantum wire. A general formula for the factor of amplification of the phonon flux, α, is derived. When the electron drift velocity, Vd, is greater than the sound phase velocity, S, then at low temperatures the above generation occurs only in a narrow range of phonon wave vectors, q ~ 2kF[1 ± (Vd – S)/VF], where kF (VF) is the wave vector (Fermi velocity) of one-dimensional electrons. Estimation gives for α the value of about 10³cm⁻¹ in the subTHz frequency range. 2000 Article Generation of coherent confined acoustic phonons by drifting electrons in quantum wire / A.A. Demidenko, V.A. Kochelap // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2000. — Т. 3, № 4. — С. 432-437. — Бібліогр.: 13 назв. — англ. 1560-8034 PACS: 63.22, 72.20, 73.20.D http://dspace.nbuv.gov.ua/handle/123456789/121217 en Semiconductor Physics Quantum Electronics & Optoelectronics Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
We developed a quantum theory of generation of coherent confined acoustic phonons by one-dimensional electrons drifting in a quantum wire. A general formula for the factor of amplification of the phonon flux, α, is derived. When the electron drift velocity, Vd, is greater than the sound phase velocity, S, then at low temperatures the above generation occurs only in a narrow range of phonon wave vectors, q ~ 2kF[1 ± (Vd – S)/VF], where kF (VF) is the wave vector (Fermi velocity) of one-dimensional electrons. Estimation gives for α the value of about 10³cm⁻¹ in the subTHz frequency range. |
| format |
Article |
| author |
Demidenko, A.A. Kochelap, V.A. |
| spellingShingle |
Demidenko, A.A. Kochelap, V.A. Generation of coherent confined acoustic phonons by drifting electrons in quantum wire Semiconductor Physics Quantum Electronics & Optoelectronics |
| author_facet |
Demidenko, A.A. Kochelap, V.A. |
| author_sort |
Demidenko, A.A. |
| title |
Generation of coherent confined acoustic phonons by drifting electrons in quantum wire |
| title_short |
Generation of coherent confined acoustic phonons by drifting electrons in quantum wire |
| title_full |
Generation of coherent confined acoustic phonons by drifting electrons in quantum wire |
| title_fullStr |
Generation of coherent confined acoustic phonons by drifting electrons in quantum wire |
| title_full_unstemmed |
Generation of coherent confined acoustic phonons by drifting electrons in quantum wire |
| title_sort |
generation of coherent confined acoustic phonons by drifting electrons in quantum wire |
| publisher |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України |
| publishDate |
2000 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/121217 |
| citation_txt |
Generation of coherent confined acoustic phonons by drifting electrons in quantum wire / A.A. Demidenko, V.A. Kochelap // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2000. — Т. 3, № 4. — С. 432-437. — Бібліогр.: 13 назв. — англ. |
| series |
Semiconductor Physics Quantum Electronics & Optoelectronics |
| work_keys_str_mv |
AT demidenkoaa generationofcoherentconfinedacousticphononsbydriftingelectronsinquantumwire AT kochelapva generationofcoherentconfinedacousticphononsbydriftingelectronsinquantumwire |
| first_indexed |
2023-10-18T20:38:52Z |
| last_indexed |
2023-10-18T20:38:52Z |
| _version_ |
1796150749314416640 |