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Please use this identifier to cite or link to this item: https://elib.bsu.by/handle/123456789/161887
Title: Low-temperature anharmonic phonon properties of supported graphene
Authors: Kolesov, E. A.
Tivanov, M. S.
Korolik, O. V.
Saad, A. M.
Komissarov, I. V.
Keywords: ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика
Issue Date: Jan-2017
Publisher: Elsevier B.V.
Citation: Carbon. - 2017. - Vol. 111. - P. 587 - 591
Abstract: Temperature-dependent Raman studies of anharmonic phonon-phonon processes in supported graphene are presented. Different G peak position temperature dependencies for graphene on glass and copper substrates were observed. Having calculated graphene-substrate total interaction energy taking into account substrate-induced strain, we estimated E2g mode energy changes due to anharmonic phonon-phonon interaction as the temperature decreases from room temperature to a value close to absolute zero for both substrates. For graphene on glass, the obtained value was about 1.8 times greater than the theoretical one for suspended graphene. For graphene on copper, the value was about 2.9 times greater. This result demonstrates a strong substrate influence on anharmonic phonon-phonon processes in graphene.
URI: http://elib.bsu.by/handle/123456789/161887
ISSN: 0008-6223
Appears in Collections:Кафедра энергофизики

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