Effects of LO-phonon confinement on electron mobility in GaAs-Al₀.₄₅ Ga₀.₅₅As superlattice

The parallel and perpendicular electron mobilities in a GaAs-Al₀.₄₅ Ga₀.₅₅As superlattice have been calculated. The scattering of electrons by confined longitudinal optical phonons was taken into account. Using the quantum treatment, we offered the new wavefunction of electron miniband conduction in...

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Дата:2004
Автор: Abouelaoualim, D.
Формат: Стаття
Мова:English
Опубліковано: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2004
Назва видання:Semiconductor Physics Quantum Electronics & Optoelectronics
Онлайн доступ:http://dspace.nbuv.gov.ua/handle/123456789/119210
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:Effects of LO-phonon confinement on electron mobility in GaAs-Al₀.₄₅ Ga₀.₅₅As superlattice / D. Abouelaoualim // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2004. — Т. 7, № 4. — С. 333-338. — Бібліогр.: 42 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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spelling irk-123456789-1192102017-06-06T03:03:52Z Effects of LO-phonon confinement on electron mobility in GaAs-Al₀.₄₅ Ga₀.₅₅As superlattice Abouelaoualim, D. The parallel and perpendicular electron mobilities in a GaAs-Al₀.₄₅ Ga₀.₅₅As superlattice have been calculated. The scattering of electrons by confined longitudinal optical phonons was taken into account. Using the quantum treatment, we offered the new wavefunction of electron miniband conduction in the superlattice as well as reformulation of the slab model for confined LO-phonon modes. An expression for the relaxation time was obtained. Our results show that the relaxation time depends significantly on the total energy of electrons. The effect of the band nonparabolicity on the relaxation time was analyzed. At 300 K, the calculated results reveal that the electron mobility is enhanced when the well width in the superlattice is equal to 45 A. 2004 Article Effects of LO-phonon confinement on electron mobility in GaAs-Al₀.₄₅ Ga₀.₅₅As superlattice / D. Abouelaoualim // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2004. — Т. 7, № 4. — С. 333-338. — Бібліогр.: 42 назв. — англ. 1560-8034 PACS: 63.2D.-e, 72.10.Di, 73.21.Cd http://dspace.nbuv.gov.ua/handle/123456789/119210 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 The parallel and perpendicular electron mobilities in a GaAs-Al₀.₄₅ Ga₀.₅₅As superlattice have been calculated. The scattering of electrons by confined longitudinal optical phonons was taken into account. Using the quantum treatment, we offered the new wavefunction of electron miniband conduction in the superlattice as well as reformulation of the slab model for confined LO-phonon modes. An expression for the relaxation time was obtained. Our results show that the relaxation time depends significantly on the total energy of electrons. The effect of the band nonparabolicity on the relaxation time was analyzed. At 300 K, the calculated results reveal that the electron mobility is enhanced when the well width in the superlattice is equal to 45 A.
format Article
author Abouelaoualim, D.
spellingShingle Abouelaoualim, D.
Effects of LO-phonon confinement on electron mobility in GaAs-Al₀.₄₅ Ga₀.₅₅As superlattice
Semiconductor Physics Quantum Electronics & Optoelectronics
author_facet Abouelaoualim, D.
author_sort Abouelaoualim, D.
title Effects of LO-phonon confinement on electron mobility in GaAs-Al₀.₄₅ Ga₀.₅₅As superlattice
title_short Effects of LO-phonon confinement on electron mobility in GaAs-Al₀.₄₅ Ga₀.₅₅As superlattice
title_full Effects of LO-phonon confinement on electron mobility in GaAs-Al₀.₄₅ Ga₀.₅₅As superlattice
title_fullStr Effects of LO-phonon confinement on electron mobility in GaAs-Al₀.₄₅ Ga₀.₅₅As superlattice
title_full_unstemmed Effects of LO-phonon confinement on electron mobility in GaAs-Al₀.₄₅ Ga₀.₅₅As superlattice
title_sort effects of lo-phonon confinement on electron mobility in gaas-al₀.₄₅ ga₀.₅₅as superlattice
publisher Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
publishDate 2004
url http://dspace.nbuv.gov.ua/handle/123456789/119210
citation_txt Effects of LO-phonon confinement on electron mobility in GaAs-Al₀.₄₅ Ga₀.₅₅As superlattice / D. Abouelaoualim // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2004. — Т. 7, № 4. — С. 333-338. — Бібліогр.: 42 назв. — англ.
series Semiconductor Physics Quantum Electronics & Optoelectronics
work_keys_str_mv AT abouelaoualimd effectsoflophononconfinementonelectronmobilityingaasal045ga055assuperlattice
first_indexed 2023-10-18T20:34:01Z
last_indexed 2023-10-18T20:34:01Z
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