Kazan Federal University Digital Repository

Theoretical studies of nonradiative 4f-4f multiphonon transitions in dielectric crystals containing rare earth ions

Show simple item record

dc.contributor.author Malkin B.
dc.contributor.author Pukhov K.
dc.contributor.author Saikin S.
dc.contributor.author Baibekov E.
dc.contributor.author Zakirov A.
dc.date.accessioned 2018-09-18T20:05:15Z
dc.date.available 2018-09-18T20:05:15Z
dc.date.issued 2007
dc.identifier.issn 0022-2860
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/136379
dc.description.abstract Detailed calculations have been performed of multiphonon relaxation rates of optical excitations in Nd-doped LiYF4 and Pr-doped CsCdBr3 crystals in the frameworks of the exchange charge model of the crystal fields and rigid ion harmonic models of lattice dynamics. It is shown that the empirical energy gap low emerges from the exponential diminishing of spectral densities of n-phonon correlation functions with the increase of an order n. Calculated transition probabilities for 2-, 3-phonon processes agree with experimental data. However, for energy gaps exceeding the maximum phonon energy more than twice, the existing theory which neglects the lattice anharmonicity brings about underestimated relaxation rates. © 2007 Elsevier B.V. All rights reserved.
dc.relation.ispartofseries Journal of Molecular Structure
dc.subject CsCdBr3
dc.subject Electron-phonon interaction
dc.subject LiYF4
dc.subject Multiphonon transitions
dc.subject Neodymium
dc.subject Praseodymium
dc.title Theoretical studies of nonradiative 4f-4f multiphonon transitions in dielectric crystals containing rare earth ions
dc.type Article
dc.relation.ispartofseries-issue 1-3
dc.relation.ispartofseries-volume 838
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 170
dc.source.id SCOPUS00222860-2007-838-13-SID34249279454


Files in this item

This item appears in the following Collection(s)

  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

Show simple item record

Search DSpace


Advanced Search

Browse

My Account

Statistics