Optical and acoustical phonon modes in superlattices with SiGe QDs

• Published in: Semiconductor Physics Quantum Electronics & Optoelectronics
• Date: 2004
• Main Authors: Yukhymchuk, V.O., Dzhagan, V.M., Klad’ko, V.P., Lytvyn, O.S., Machulin, V.F., Valakh, M.Ya., Yaremko, A.M., Milekhin, A.G., Krasil’nik, Z.F., Novikov, A.V., Mestres, N., Pascual, J.
• Format: Article
• Language: English
• Published: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2004
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/119224
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Optical and acoustical phonon modes in superlattices with SiGe QDs / V.O. Yukhymchuk, V.M. Dzhagan, V.P. Klad’ko, O.S. Lytvyn, V.F. Machulin, M.Ya. Valakh, A.M. Yaremko, A.G. Milekhin, Z.F. Krasil’nik, A.V. Novikov, N. Mestres, J. Pascual // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2004. — Т. 7, № 4. — С. 456-461. — Бібліогр.: 20 назв. — англ.

Multilayers with SiGe nanoislands grown in a broad temperature range (300-600 °C) are studied using Raman spectroscopy, HRXRD and AFM. It is shown that the islands are fully strained when obtained at 300 °C and gradually relax with the growth temperature increase. The main contribution to the Raman...