Local vibrational mode spectroscopy of Si donors and Be acceptors in MBE InAs and InSb studied by infrared absorption and Raman scattering
- 1 March 1991
- journal article
- Published by IOP Publishing in Semiconductor Science and Technology
- Vol. 6 (3) , 147-154
- https://doi.org/10.1088/0268-1242/6/3/001
Abstract
Samples of InAs and InSb either singly or doubly doped with Si and Be impurities have been studied using FTIR absorption spectroscopy and Raman scattering. Localized vibrational modes of 28SiIn donors and 9BeIn acceptors have been identified at 359 and 435 cm-1 respectively in InAs. The two impurities give corresponding lines at 316 and 414 cm-1 in InSb. Comparisons are made with the behaviour of the same impurities in compensated of p-type GaAs. Strong resonance effects relating to the incident photon energy are found in the Raman spectra of 20SiIn donors.Keywords
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