Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/96577
Type: Artigo de periódico
Title: The Relaxation Rate Of Europium In Europium Iron Garnet
Author: Foglio M.E.
Abstract: The relaxation rate of europium ions in europium iron garnet (EulG) was estimated by assuming that the crystal field is modulated by optical phonons. Mixing J = 2 states into the J = 0 and J = 1 states by the static rhombic fields breaks the "triangle selection rule" and makes possible this mechanism. It is concluded that the mechanism proposed here can be responsible of the order of magnitude of the line width in the ferrimagnetic resonance of EuIG, but to obtain the observed isotropy of the line width, it is necessary to make rather arbitrary assumptions concerning the dependence of phonon spectral density on frequency. © 1976.
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Rights: fechado
Identifier DOI: 10.1016/0304-8853(76)90055-X
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-49549128989&partnerID=40&md5=b2c04f2163095253628d0f65d89416a8
Date Issue: 1976
Appears in Collections:Unicamp - Artigos e Outros Documentos

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