Variation of the refractive index and polarizability of sapphire under high pressures

Detalhes bibliográficos
Autor(a) principal: Balzaretti, Naira Maria
Data de Publicação: 1993
Outros Autores: Denis, J.P., Jornada, Joao Alziro Herz da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/95348
Resumo: In this article we present the experimental results for the pressure variation of the refractive index of sapphire up to 16 GPa, obtained with an interferometric method, using the diamond anvil cell. In the range of hydrostatic pressures, up to about 12 GPa, the analysis of the results with the classic Lorentz-Lorenz approach provides a nearly linear relation between polarizability (cr) and volume, corresponding to a constant strain polarizability parameter. For pressures above 12 GPa, there is a substantial nonlinear deviation, associated with nonhydrostatic effects inside the diamond anvil cell.
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spelling Balzaretti, Naira MariaDenis, J.P.Jornada, Joao Alziro Herz da2014-05-17T02:06:47Z19930021-8979http://hdl.handle.net/10183/95348000056183In this article we present the experimental results for the pressure variation of the refractive index of sapphire up to 16 GPa, obtained with an interferometric method, using the diamond anvil cell. In the range of hydrostatic pressures, up to about 12 GPa, the analysis of the results with the classic Lorentz-Lorenz approach provides a nearly linear relation between polarizability (cr) and volume, corresponding to a constant strain polarizability parameter. For pressures above 12 GPa, there is a substantial nonlinear deviation, associated with nonhydrostatic effects inside the diamond anvil cell.application/pdfengJournal of Applied Physics. Woodbury. Vol. 73, n. 3 (Feb. 1993), p. 1426-1429Física da matéria condensadaFisica de altas pressoesVariation of the refractive index and polarizability of sapphire under high pressuresEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000056183.pdf000056183.pdfTexto completo (inglês)application/pdf541496http://www.lume.ufrgs.br/bitstream/10183/95348/1/000056183.pdf7ab41dc1bcb426b5b0e4f546c15eef61MD51TEXT000056183.pdf.txt000056183.pdf.txtExtracted Texttext/plain17020http://www.lume.ufrgs.br/bitstream/10183/95348/2/000056183.pdf.txt2973ffb73090cbe81062e069df11f9ddMD52THUMBNAIL000056183.pdf.jpg000056183.pdf.jpgGenerated Thumbnailimage/jpeg1552http://www.lume.ufrgs.br/bitstream/10183/95348/3/000056183.pdf.jpgdedd4ce56c0834db60fda942ddf3a4a2MD5310183/953482023-08-23 03:33:08.997135oai:www.lume.ufrgs.br:10183/95348Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-23T06:33:08Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Variation of the refractive index and polarizability of sapphire under high pressures
title Variation of the refractive index and polarizability of sapphire under high pressures
spellingShingle Variation of the refractive index and polarizability of sapphire under high pressures
Balzaretti, Naira Maria
Física da matéria condensada
Fisica de altas pressoes
title_short Variation of the refractive index and polarizability of sapphire under high pressures
title_full Variation of the refractive index and polarizability of sapphire under high pressures
title_fullStr Variation of the refractive index and polarizability of sapphire under high pressures
title_full_unstemmed Variation of the refractive index and polarizability of sapphire under high pressures
title_sort Variation of the refractive index and polarizability of sapphire under high pressures
author Balzaretti, Naira Maria
author_facet Balzaretti, Naira Maria
Denis, J.P.
Jornada, Joao Alziro Herz da
author_role author
author2 Denis, J.P.
Jornada, Joao Alziro Herz da
author2_role author
author
dc.contributor.author.fl_str_mv Balzaretti, Naira Maria
Denis, J.P.
Jornada, Joao Alziro Herz da
dc.subject.por.fl_str_mv Física da matéria condensada
Fisica de altas pressoes
topic Física da matéria condensada
Fisica de altas pressoes
description In this article we present the experimental results for the pressure variation of the refractive index of sapphire up to 16 GPa, obtained with an interferometric method, using the diamond anvil cell. In the range of hydrostatic pressures, up to about 12 GPa, the analysis of the results with the classic Lorentz-Lorenz approach provides a nearly linear relation between polarizability (cr) and volume, corresponding to a constant strain polarizability parameter. For pressures above 12 GPa, there is a substantial nonlinear deviation, associated with nonhydrostatic effects inside the diamond anvil cell.
publishDate 1993
dc.date.issued.fl_str_mv 1993
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dc.relation.ispartof.pt_BR.fl_str_mv Journal of Applied Physics. Woodbury. Vol. 73, n. 3 (Feb. 1993), p. 1426-1429
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