Dielectric relaxation in pure and irradiated TGSP crystals

Detalhes bibliográficos
Autor(a) principal: Arunmozhi, G.
Data de Publicação: 2000
Outros Autores: Lanceros-Méndez, S., Gomes, E. Matos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/3629
Resumo: Low frequency dielectric measurements in triglycine sulpho-phosphate (TGSP) and gamma-irradiated TGSP crystals were carried out around the ferroelectric to paraelectric phase transition. The dispersion found in the ferroelectric phase cannot be explained only by a Debye equation with a single relaxation time. The ratio of the Curie constants in the para- and ferroelectric phase (C-p/C-f) for the irradiated TGSP samples show that the crystal is partially clamped. The deviations from the typical single relaxation behaviour are more pronounced in irradiated samples clearly indicating the contribution of defects in addition to the impurities to the dynamics of the system
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spelling Dielectric relaxation in pure and irradiated TGSP crystalsFerroelectricTriglycine sulpho - phosphateDielectric dispersionPhosphoric-acidPyroelectricTGS familyScience & TechnologyLow frequency dielectric measurements in triglycine sulpho-phosphate (TGSP) and gamma-irradiated TGSP crystals were carried out around the ferroelectric to paraelectric phase transition. The dispersion found in the ferroelectric phase cannot be explained only by a Debye equation with a single relaxation time. The ratio of the Curie constants in the para- and ferroelectric phase (C-p/C-f) for the irradiated TGSP samples show that the crystal is partially clamped. The deviations from the typical single relaxation behaviour are more pronounced in irradiated samples clearly indicating the contribution of defects in addition to the impurities to the dynamics of the systemElsevier ScienceUniversidade do MinhoArunmozhi, G.Lanceros-Méndez, S.Gomes, E. Matos2000-062000-06-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/3629eng"Materials Letters". ISSN 0167-577X. 44:3/4 (2000) 237-241.0167-577X10.1016/S0167-577X(00)00035-5http://www.elsevier.com/wps/find/journaldescription.cws_home/505672/description#descriptionhttp://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TX9-40FGC65-R-G&_cdi=5585&_user=2459786&_orig=search&_coverDate=06%2F30%2F2000&_sk=999559996&view=c&wchp=dGLbVtz-zSkzV&md5=dfd8561c67e493a265fc8037a3793934&ie=/sdarticle.pdfinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:46:43Zoai:repositorium.sdum.uminho.pt:1822/3629Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:44:45.146060Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Dielectric relaxation in pure and irradiated TGSP crystals
title Dielectric relaxation in pure and irradiated TGSP crystals
spellingShingle Dielectric relaxation in pure and irradiated TGSP crystals
Arunmozhi, G.
Ferroelectric
Triglycine sulpho - phosphate
Dielectric dispersion
Phosphoric-acid
Pyroelectric
TGS family
Science & Technology
title_short Dielectric relaxation in pure and irradiated TGSP crystals
title_full Dielectric relaxation in pure and irradiated TGSP crystals
title_fullStr Dielectric relaxation in pure and irradiated TGSP crystals
title_full_unstemmed Dielectric relaxation in pure and irradiated TGSP crystals
title_sort Dielectric relaxation in pure and irradiated TGSP crystals
author Arunmozhi, G.
author_facet Arunmozhi, G.
Lanceros-Méndez, S.
Gomes, E. Matos
author_role author
author2 Lanceros-Méndez, S.
Gomes, E. Matos
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Arunmozhi, G.
Lanceros-Méndez, S.
Gomes, E. Matos
dc.subject.por.fl_str_mv Ferroelectric
Triglycine sulpho - phosphate
Dielectric dispersion
Phosphoric-acid
Pyroelectric
TGS family
Science & Technology
topic Ferroelectric
Triglycine sulpho - phosphate
Dielectric dispersion
Phosphoric-acid
Pyroelectric
TGS family
Science & Technology
description Low frequency dielectric measurements in triglycine sulpho-phosphate (TGSP) and gamma-irradiated TGSP crystals were carried out around the ferroelectric to paraelectric phase transition. The dispersion found in the ferroelectric phase cannot be explained only by a Debye equation with a single relaxation time. The ratio of the Curie constants in the para- and ferroelectric phase (C-p/C-f) for the irradiated TGSP samples show that the crystal is partially clamped. The deviations from the typical single relaxation behaviour are more pronounced in irradiated samples clearly indicating the contribution of defects in addition to the impurities to the dynamics of the system
publishDate 2000
dc.date.none.fl_str_mv 2000-06
2000-06-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/3629
url http://hdl.handle.net/1822/3629
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv "Materials Letters". ISSN 0167-577X. 44:3/4 (2000) 237-241.
0167-577X
10.1016/S0167-577X(00)00035-5
http://www.elsevier.com/wps/find/journaldescription.cws_home/505672/description#description
http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TX9-40FGC65-R-G&_cdi=5585&_user=2459786&_orig=search&_coverDate=06%2F30%2F2000&_sk=999559996&view=c&wchp=dGLbVtz-zSkzV&md5=dfd8561c67e493a265fc8037a3793934&ie=/sdarticle.pdf
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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