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Phonon hardening due to the small-polaron effect

dc.creatorIvić, Zoran
dc.creatorZeković, Slobodan
dc.creatorČevizović, Dalibor
dc.creatorKostić, Dragan
dc.date.accessioned2018-03-01T19:34:54Z
dc.date.available2018-03-01T19:34:54Z
dc.date.issued2005
dc.identifier.issn0921-4526
dc.identifier.urihttps://vinar.vin.bg.ac.rs/handle/123456789/2851
dc.description.abstractThe influence of the small-polaron effect on the vibrational properties of the strongly coupled electron-phonon system is investigated. It was found that polaron-phonon interaction may cause a noticeable renormalization of the phonon spectra. These changes may be observed by the measurements of the speed of sound for which a very specific dependence on temperature, values of coupling constant and adiabatic parameter is expected. We also found that the rise of the small-polaron effective mass as a function of the coupling constant should be considerably moderated than that anticipated without taking into account the modification of the vibrational spectra. (C) 2004 Elsevier B.V. All rights reserved.en
dc.rightsrestrictedAccessen
dc.sourcePhysica B: Condensed Matteren
dc.subjectpolaronen
dc.subjectphonon hardeningen
dc.subjectmodification of speed of sounden
dc.titlePhonon hardening due to the small-polaron effecten
dc.typearticleen
dcterms.abstractЗековиц, С; Костиц, Д; Ивић Зоран; Цевизовић Далибор;
dc.citation.volume355
dc.citation.issue1-4
dc.citation.spage417
dc.citation.epage426
dc.identifier.wos000226733300054
dc.identifier.doi10.1016/j.physb.2004.11.070
dc.citation.rankM23
dc.identifier.scopus2-s2.0-11444268730


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