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Article: Excitonic effects on dielectric properties of solids in a uniform electric field

TitleExcitonic effects on dielectric properties of solids in a uniform electric field
Authors
Issue Date1971
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B, 1971, v. 4 n. 6, p. 2046-2053 How to Cite?
AbstractThe imaginary part of the dielectric function for excitonic transitions and different types of critical points of a solid in a uniform electric field are presented in a closed form. The time-dependent Schrödinger equation, with a time-dependent gauge for the applied electric field which includes the electron-hole interaction forces is treated within the effective-mass approximation. In the weak fields and using the two-band approximations, the results can be expressed in terms of Airy functions. The peak position of the exciton lines is found to shift to lower energies and then move to higher energies as the electric field increases. The amplitude of the peak decreases as the electric field increases. The electron-hole interaction can be neglected in calculating the electric-field-induced change of the dielectric constant, when the applied electric field is much larger than the effective field of the electron-hole interaction. © 1971 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/155396
ISSN
2001 Impact Factor: 3.07
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYang, Een_US
dc.date.accessioned2012-08-08T08:33:17Z-
dc.date.available2012-08-08T08:33:17Z-
dc.date.issued1971en_US
dc.identifier.citationPhysical Review B, 1971, v. 4 n. 6, p. 2046-2053en_US
dc.identifier.issn0163-1829en_US
dc.identifier.urihttp://hdl.handle.net/10722/155396-
dc.description.abstractThe imaginary part of the dielectric function for excitonic transitions and different types of critical points of a solid in a uniform electric field are presented in a closed form. The time-dependent Schrödinger equation, with a time-dependent gauge for the applied electric field which includes the electron-hole interaction forces is treated within the effective-mass approximation. In the weak fields and using the two-band approximations, the results can be expressed in terms of Airy functions. The peak position of the exciton lines is found to shift to lower energies and then move to higher energies as the electric field increases. The amplitude of the peak decreases as the electric field increases. The electron-hole interaction can be neglected in calculating the electric-field-induced change of the dielectric constant, when the applied electric field is much larger than the effective field of the electron-hole interaction. © 1971 The American Physical Society.en_US
dc.languageengen_US
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/en_US
dc.relation.ispartofPhysical Review Ben_US
dc.titleExcitonic effects on dielectric properties of solids in a uniform electric fielden_US
dc.typeArticleen_US
dc.identifier.emailYang, E:esyang@hkueee.hku.hken_US
dc.identifier.authorityYang, E=rp00199en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1103/PhysRevB.4.2046en_US
dc.identifier.scopuseid_2-s2.0-35949033525en_US
dc.identifier.volume4en_US
dc.identifier.issue6en_US
dc.identifier.spage2046en_US
dc.identifier.epage2053en_US
dc.identifier.isiWOS:A1971K306500042-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridYang, E=7202021229en_US

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