Наукова електронна бібліотека
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періодичних видань НАН України
Piezoelectrically active acoustic waves confined in a quantum well and their amplification by electron drift
Репозиторій DSpace/Manakin
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- Фізико-технічні та математичні науки
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- Відділення фізики і астрономії
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- Semiconductor Physics Quantum Electronics & Optoelectronics
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- Semiconductor Physics Quantum Electronics & Optoelectronics, 2000, том 3
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- Semicond. Physics Quantum Electronics & Optoelectronics, 2000, № 4
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Piezoelectrically active acoustic waves confined in a quantum well and their amplification by electron drift
Інший ID:
PACS: 63.22, 72.20, 73.20.D
Посилання:
Piezoelectrically active acoustic waves confined in a quantum well and their amplification by electron drift / A.A. Demidenko, V.A. Kochelap, E.F. Venger // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2000. — Т. 3, № 4. — С. 427-431. — Бібліогр.: 12 назв. — англ.
Підтримка:
This work was supported by the State Fundamental Re-searches Foundation of Ukraine (Grant ¹ 2.4/679) and by the project STCU ¹ Gr–01.
Дата:
2000
Переглядів:
686
Завантажень:
437
Анотація:
In [1] we have studied how the drift of two-dimensional electrons amplifies the acoustic waves confined in quantum wells. The electron-phonon interaction was considered to be due to deformation potential. Here we generalize the theory for the case of piezoelectric electron-phonon interaction. For transverse piezoelectrically active waves in sphalerite-type crystals we obtained solution in the form of localized waves and determined the amplification factor a under the drift of two-dimensional electrons. At frequencies of the order of tens GHz and drift fields of several V/cm a is about tens of cm⁻¹.
