Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/98778
Type: Artigo de periódico
Title: The Infrared Reflectivity In Srtio3 And The Antidistortive Transition
Author: Galzerani J.C.
Katiyar R.S.
Abstract: We have studied the infrared reflectivity spectra of SrTiO3, at various temperatures, down to 15 K. A Classical Dispersion model was used to fit the reflectivity spectra, considering both uncoupled and coupled modes. We also carried out a Kramers-Kronig analysis. The reflectivity in the low frequency region gradually increases on lowering the temperature, due to the soft mode behaviour. We also noticed that a new dip appears in the spectra below Tc∼110K, which has not previously been reported and which accounts for the Eu mode arising from the R'25 mode in the cubic symmetry. © 1982.
Editor: 
Rights: fechado
Identifier DOI: 10.1016/0038-1098(82)90189-2
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0020091384&partnerID=40&md5=d7ce957be8c864a16493519b63707ec2
Date Issue: 1982
Appears in Collections:Unicamp - Artigos e Outros Documentos

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