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Cited by 466

The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.

Effect of Free Carriers on Zone-Center Vibrational Modes in Heavily Dopedp-type Si. II. Optical Modes

Cerdeira, Fernando, Fjeldly, T. A., Cardona, M.·1973·Physical Review B

Abstract

The effect of free holes on the optical phonons of Si at the zone center is investigated with Raman scattering. The presence of holes produces an inter-valence-band, electronic, broad, scattering background which overlaps with the one-phonon Raman line. This overlap results in a Fano-type continuous-discrete interference. The parameters $\ensuremath{\Gamma}$ and $q$ of the resulting Fano scattering line can be varied by changing (a) the laser wavelength and (b) the free-carrier concentration. A theoretical interpretation of these results based on the detailed valence-band structure of Si and on the resonant characteristics of the vibronic and electronic Raman scattering is presented. The effect of uniaxial stress on this composite Raman scattering of $p$-type Si is also investigated. At large stresses the electronic background disappears and the phonon lines recover the linewidths of the intrinsic material. The behavior in the intermediate-stress range is very similar to that reported for the acoustical phonons in the previous paper.

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Metadata

Authors
Cerdeira, F., Fjeldly, T. A., & Cardona, M.
Venue
Physical Review B
Published
1973-11-15
Volume
8
Issue
10
Pages
4734-4745
ISSN
0556-2805 (ISSN-L)
OpenAlex
W4230174417
Cited by
466
References
7
FWCI
3.13
Type
journal article
Language
en
Open access
closed

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