Absorption spectrum of the mixed valence Cr3+-Cr2+ pair center in KZnF3 crystal

dc.contributor.author	Eremin M.
dc.contributor.author	Nikitin S.
dc.contributor.author	Silkin N.
dc.contributor.author	Prosvirnin S.
dc.contributor.author	Yusupov R.
dc.date.accessioned	2018-09-17T20:37:24Z
dc.date.available	2018-09-17T20:37:24Z
dc.date.issued	2002
dc.identifier.issn	0277-786X
dc.identifier.uri	https://dspace.kpfu.ru/xmlui/handle/net/133774
dc.description.abstract	Assignment of absorption lines of mixed valence Cr3+-Cr2+ pair center has been done by the analysis of the probabilities of exchange-induced electric-dipole transitions. Parameters of exchange interaction J1 = 44.5 ± 5 cm-1 and axial crystal field B2 0 = -19.6±2 cm-1 for the excited state \|Cr2+3Ea; Cr3+4A2〉 have been estimated from the fine structure of absorption spectra of the pair. Using microscopic theory of superexchange interaction for the ground and excited states of the pair the value of the transfer integral of eg-electron via the intermediate fluorine ion tvv = 3500 cm-1 has been extracted.
dc.relation.ispartofseries	Proceedings of SPIE - The International Society for Optical Engineering
dc.subject	Double exchange
dc.subject	Exchange interaction
dc.subject	Mixed valence
dc.subject	Optical spectroscopy
dc.title	Absorption spectrum of the mixed valence Cr3+-Cr2+ pair center in KZnF3 crystal
dc.type	Conference Paper
dc.relation.ispartofseries-volume	4766
dc.collection	Публикации сотрудников КФУ
dc.relation.startpage	83
dc.source.id	SCOPUS0277786X-2002-4766-SID0036417181

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Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.