Effects of Ca and Sr chemical doping on the average superconducting kinetic energy of YBa2Cu3O7-δ
Autor(a) principal: | |
---|---|
Data de Publicação: | 2015 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/132574 |
Resumo: | In this brief communication we applied the MZFC(T) and MFCC(T) reversible dc magnetizations to get the average superconducting kinetic energy density, kS(T,B) of YBa2Cu3O7-d, Y0.95Ca0.05Ba2Cu3O7-d and YBa1.75Sr0.25Cu3O7-d ceramic samples with the aim of study the effects of Ca and Sr doping on the kS(T,B). The MZFC(T) and MFCC(T) measurements were performed with a SQUID magnetometer from quantum design to dc magnetic fields up to 50kOe. The determination of the kS(T,B) from reversible dc magnetization is supported by virial theorem of superconductivity [kS(T,B) = - M.B]. The kS(T,B) results show an common temperature profile for all the samples which is smoothly affected by the magnetic field. On the other hand the kS(T,B) results to T ³ Tc could not be associated to the pseudogap phenomenon. The Ca doping affects more effectively the kS(T,B) behaviour then Sr doping. A possible explanation to this feature could be associated to the fact that the hole doping promoted by Ca doping depress more considerably the superconducting state and enhances the granular character of the YBa2Cu3O7-d superconductor than the chemical pressure effect promoted by Sr doping. |
id |
UFRGS-2_ebc73f3dd12a43d1f5be7562441f8015 |
---|---|
oai_identifier_str |
oai:www.lume.ufrgs.br:10183/132574 |
network_acronym_str |
UFRGS-2 |
network_name_str |
Repositório Institucional da UFRGS |
repository_id_str |
|
spelling |
Vieira, Valdemar das NevesMendonça, A.P.A.Dias, Fabio TeixeiraHneda, Marlon LuizPureur Neto, PauloSchaf, JacobMesquita, Fabiano2016-01-31T02:03:51Z20151742-6588http://hdl.handle.net/10183/132574000982325In this brief communication we applied the MZFC(T) and MFCC(T) reversible dc magnetizations to get the average superconducting kinetic energy density, kS(T,B) of YBa2Cu3O7-d, Y0.95Ca0.05Ba2Cu3O7-d and YBa1.75Sr0.25Cu3O7-d ceramic samples with the aim of study the effects of Ca and Sr doping on the kS(T,B). The MZFC(T) and MFCC(T) measurements were performed with a SQUID magnetometer from quantum design to dc magnetic fields up to 50kOe. The determination of the kS(T,B) from reversible dc magnetization is supported by virial theorem of superconductivity [kS(T,B) = - M.B]. The kS(T,B) results show an common temperature profile for all the samples which is smoothly affected by the magnetic field. On the other hand the kS(T,B) results to T ³ Tc could not be associated to the pseudogap phenomenon. The Ca doping affects more effectively the kS(T,B) behaviour then Sr doping. A possible explanation to this feature could be associated to the fact that the hole doping promoted by Ca doping depress more considerably the superconducting state and enhances the granular character of the YBa2Cu3O7-d superconductor than the chemical pressure effect promoted by Sr doping.application/pdfengJournal of physics : conference series. Bristol. Vol. 592 (2015), 012062, 6 p.MagnetizaçãoCompostos de cálcioCompostos de estrôncioCompostos de bárioCompostos de ítrioEffects of Ca and Sr chemical doping on the average superconducting kinetic energy of YBa2Cu3O7-δEstrangeiroinfo: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:UFRGSORIGINAL000982325.pdf000982325.pdfTexto completo (inglês)application/pdf805853http://www.lume.ufrgs.br/bitstream/10183/132574/1/000982325.pdfb2813e95e801f5aa17193dc3bfff6b4fMD51TEXT000982325.pdf.txt000982325.pdf.txtExtracted Texttext/plain18219http://www.lume.ufrgs.br/bitstream/10183/132574/2/000982325.pdf.txtfc1d6299c66e4e342732b8001b669d5eMD52THUMBNAIL000982325.pdf.jpg000982325.pdf.jpgGenerated Thumbnailimage/jpeg1162http://www.lume.ufrgs.br/bitstream/10183/132574/3/000982325.pdf.jpge69fb04f6975529deec3ddbe95f58b93MD5310183/1325742023-07-09 03:37:09.539275oai:www.lume.ufrgs.br:10183/132574Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-09T06:37:09Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Effects of Ca and Sr chemical doping on the average superconducting kinetic energy of YBa2Cu3O7-δ |
title |
Effects of Ca and Sr chemical doping on the average superconducting kinetic energy of YBa2Cu3O7-δ |
spellingShingle |
Effects of Ca and Sr chemical doping on the average superconducting kinetic energy of YBa2Cu3O7-δ Vieira, Valdemar das Neves Magnetização Compostos de cálcio Compostos de estrôncio Compostos de bário Compostos de ítrio |
title_short |
Effects of Ca and Sr chemical doping on the average superconducting kinetic energy of YBa2Cu3O7-δ |
title_full |
Effects of Ca and Sr chemical doping on the average superconducting kinetic energy of YBa2Cu3O7-δ |
title_fullStr |
Effects of Ca and Sr chemical doping on the average superconducting kinetic energy of YBa2Cu3O7-δ |
title_full_unstemmed |
Effects of Ca and Sr chemical doping on the average superconducting kinetic energy of YBa2Cu3O7-δ |
title_sort |
Effects of Ca and Sr chemical doping on the average superconducting kinetic energy of YBa2Cu3O7-δ |
author |
Vieira, Valdemar das Neves |
author_facet |
Vieira, Valdemar das Neves Mendonça, A.P.A. Dias, Fabio Teixeira Hneda, Marlon Luiz Pureur Neto, Paulo Schaf, Jacob Mesquita, Fabiano |
author_role |
author |
author2 |
Mendonça, A.P.A. Dias, Fabio Teixeira Hneda, Marlon Luiz Pureur Neto, Paulo Schaf, Jacob Mesquita, Fabiano |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Vieira, Valdemar das Neves Mendonça, A.P.A. Dias, Fabio Teixeira Hneda, Marlon Luiz Pureur Neto, Paulo Schaf, Jacob Mesquita, Fabiano |
dc.subject.por.fl_str_mv |
Magnetização Compostos de cálcio Compostos de estrôncio Compostos de bário Compostos de ítrio |
topic |
Magnetização Compostos de cálcio Compostos de estrôncio Compostos de bário Compostos de ítrio |
description |
In this brief communication we applied the MZFC(T) and MFCC(T) reversible dc magnetizations to get the average superconducting kinetic energy density, kS(T,B) of YBa2Cu3O7-d, Y0.95Ca0.05Ba2Cu3O7-d and YBa1.75Sr0.25Cu3O7-d ceramic samples with the aim of study the effects of Ca and Sr doping on the kS(T,B). The MZFC(T) and MFCC(T) measurements were performed with a SQUID magnetometer from quantum design to dc magnetic fields up to 50kOe. The determination of the kS(T,B) from reversible dc magnetization is supported by virial theorem of superconductivity [kS(T,B) = - M.B]. The kS(T,B) results show an common temperature profile for all the samples which is smoothly affected by the magnetic field. On the other hand the kS(T,B) results to T ³ Tc could not be associated to the pseudogap phenomenon. The Ca doping affects more effectively the kS(T,B) behaviour then Sr doping. A possible explanation to this feature could be associated to the fact that the hole doping promoted by Ca doping depress more considerably the superconducting state and enhances the granular character of the YBa2Cu3O7-d superconductor than the chemical pressure effect promoted by Sr doping. |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015 |
dc.date.accessioned.fl_str_mv |
2016-01-31T02:03:51Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/132574 |
dc.identifier.issn.pt_BR.fl_str_mv |
1742-6588 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000982325 |
identifier_str_mv |
1742-6588 000982325 |
url |
http://hdl.handle.net/10183/132574 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Journal of physics : conference series. Bristol. Vol. 592 (2015), 012062, 6 p. |
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.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
instname_str |
Universidade Federal do Rio Grande do Sul (UFRGS) |
instacron_str |
UFRGS |
institution |
UFRGS |
reponame_str |
Repositório Institucional da UFRGS |
collection |
Repositório Institucional da UFRGS |
bitstream.url.fl_str_mv |
http://www.lume.ufrgs.br/bitstream/10183/132574/1/000982325.pdf http://www.lume.ufrgs.br/bitstream/10183/132574/2/000982325.pdf.txt http://www.lume.ufrgs.br/bitstream/10183/132574/3/000982325.pdf.jpg |
bitstream.checksum.fl_str_mv |
b2813e95e801f5aa17193dc3bfff6b4f fc1d6299c66e4e342732b8001b669d5e e69fb04f6975529deec3ddbe95f58b93 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS) |
repository.mail.fl_str_mv |
|
_version_ |
1801224894341447680 |