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...
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| Veröffentlicht in: | Semiconductor Physics Quantum Electronics & Optoelectronics |
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| Datum: | 2000 |
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| Format: | Artikel |
| Sprache: | English |
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Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
2000
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/121217 |
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| Zitieren: | 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. |
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Demidenko, A.A. Kochelap, V.A. 2017-06-13T16:56:22Z 2017-06-13T16:56:22Z 2000 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 https://nasplib.isofts.kiev.ua/handle/123456789/121217 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. We are grateful to Dr. V.I. Sheka for assistance in calcu-lations and E.V. Mozdor for her help in preparation of the manuscript. The work was supported by the State Fun-damental Researches Foundation of Ukraine (Grant № 2.4/679) and by the project STCU № Gr–01. en Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України Semiconductor Physics Quantum Electronics & Optoelectronics Generation of coherent confined acoustic phonons by drifting electrons in quantum wire Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Generation of coherent confined acoustic phonons by drifting electrons in quantum wire |
| spellingShingle |
Generation of coherent confined acoustic phonons by drifting electrons in quantum wire Demidenko, A.A. Kochelap, V.A. |
| 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 |
| author |
Demidenko, A.A. Kochelap, V.A. |
| author_facet |
Demidenko, A.A. Kochelap, V.A. |
| publishDate |
2000 |
| language |
English |
| container_title |
Semiconductor Physics Quantum Electronics & Optoelectronics |
| publisher |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України |
| format |
Article |
| 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.
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| issn |
1560-8034 |
| url |
https://nasplib.isofts.kiev.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. |
| work_keys_str_mv |
AT demidenkoaa generationofcoherentconfinedacousticphononsbydriftingelectronsinquantumwire AT kochelapva generationofcoherentconfinedacousticphononsbydriftingelectronsinquantumwire |
| first_indexed |
2025-12-07T18:12:30Z |
| last_indexed |
2025-12-07T18:12:30Z |
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1850874160784343040 |