Supercondutores ferromagnéticos no modelo de Ginzburg-Landau
Autor(a) principal: | |
---|---|
Data de Publicação: | 2019 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFRPE |
Texto Completo: | http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8520 |
Resumo: | We introduce the modi ed Ginzburg-Landau theory by means of a superconducting order parameter with two components and a magnetic order parameter with three components, as this allows the analysis of phase diagrams in the superconducting and ferromagnetic states. We also discuss the basic theories presented by some scholars who have attempted to explain the conductivity and, above all, superconductivity that have served as a basis in the studies of other works, such as the case of the treatment of electronic conduction behaving in the same way as a particulate gas, superconducting state to be treated as a two-uid model. We discuss in the rst chapter an introduction with a brief historical summary, from the discovery of the electron until when the superconductivity was known with cooling of materials, because the null resistance and the expulsion of the external magnetic elds are characterized, but the superconducting state is an intrinsic property of the material. We veri ed the theories of London, Ginzburg-landau and BCS that are related to the superconductivity and shown in the second chapter, in which we verify studies of microscopic and macroscopic phenomena, besides the classi cation of types I and II of this state of matter. A study on the coexistence of the ferromagnetic and superconducting phases is veri ed by means of spontaneous magnetization, starting from the normalized free energy density, presented in the third chapter. But we verify the phenomenology of GL with two order parameters in order to perform the behavior of some solutions of energy disunity by means of programming resources with the use of Mathematica and graphical analysis of the phase domains. |
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ROMAGUERA, Antonio Rodrigues de CastroSOUZA, Adauto José Ferreira deMIRANDA FILHO, Luciano Hugohttp://lattes.cnpq.br/8837205286210231QUEIROZ, Salomão Pereira de2021-02-22T13:45:41Z2019-02-15QUEIROZ, Salomão Pereira de. Supercondutores ferromagnéticos no modelo de Ginzburg-Landau. 2019. 49 f. Dissertação (Programa de Pós-Graduação em Física Aplicada) - Universidade Federal Rural de Pernambuco, Recife.http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8520We introduce the modi ed Ginzburg-Landau theory by means of a superconducting order parameter with two components and a magnetic order parameter with three components, as this allows the analysis of phase diagrams in the superconducting and ferromagnetic states. We also discuss the basic theories presented by some scholars who have attempted to explain the conductivity and, above all, superconductivity that have served as a basis in the studies of other works, such as the case of the treatment of electronic conduction behaving in the same way as a particulate gas, superconducting state to be treated as a two-uid model. We discuss in the rst chapter an introduction with a brief historical summary, from the discovery of the electron until when the superconductivity was known with cooling of materials, because the null resistance and the expulsion of the external magnetic elds are characterized, but the superconducting state is an intrinsic property of the material. We veri ed the theories of London, Ginzburg-landau and BCS that are related to the superconductivity and shown in the second chapter, in which we verify studies of microscopic and macroscopic phenomena, besides the classi cation of types I and II of this state of matter. A study on the coexistence of the ferromagnetic and superconducting phases is veri ed by means of spontaneous magnetization, starting from the normalized free energy density, presented in the third chapter. But we verify the phenomenology of GL with two order parameters in order to perform the behavior of some solutions of energy disunity by means of programming resources with the use of Mathematica and graphical analysis of the phase domains.Introduzimos a teoria de Ginzburg-Landau modi cada por meio de um parâmetro de ordem supercondutor com duas componentes e um parâmetro de ordem magnética com três componentes, pois isto permite a análise de diagramas de fases nos estados supercondutor e ferromagnético. Também abordamos teorias básicas apresentadas por alguns estudiosos que tentaram explicar a condutividade e, sobretudo, a supercondutividade que serviram de bases nos estudos de outros trabalhos como o caso do tratamento da condução eletrônica se comportar da mesma forma que um gás de partículas, bem como o estado supercondutor ser tratado como um modelo de dois fluidos. Tratamos no primeiro capítulo uma introdução com breve resumo histórico abordando desde a descoberta do elétron até quando se conheceu a supercondutividade com resfriamento de materiais, pois se caracterizam a resistência nula e a expulsão dos campos magnéticos externos, mas o estado supercondutor e uma propriedade intrínseca do material. Verifi camos as teorias de London, Ginzburg-landau e BCS que são relacionadas à supercondutividade e mostradas no segundo capítulo, mencionando estudos de fenômenos microscópicos e macroscópicos, além da classifi cação dos tipos I e II desse estado da matéria. A coexistência das fases ferromagnética e supercondutor é verifi cado por meio da magnetização espontânea, partindo da densidade de energia livre adimensional normalizada, e apresentado no terceiro capítulo. Constatamos a fenomenologia de GL com dois parâmetros de ordens a fim de realizar o comportamento de algumas soluções da densidade energia por meio de recursos de programação com o uso do Mathematica e análise gráfi ca dos domínios de fase.Submitted by Mario BC (mario@bc.ufrpe.br) on 2021-02-22T13:45:41Z No. of bitstreams: 1 Salomao Pereira de Queiroz.pdf: 1510644 bytes, checksum: dcd62df4c200ef6c24aa08404e51341d (MD5)Made available in DSpace on 2021-02-22T13:45:41Z (GMT). No. of bitstreams: 1 Salomao Pereira de Queiroz.pdf: 1510644 bytes, checksum: dcd62df4c200ef6c24aa08404e51341d (MD5) Previous issue date: 2019-02-15application/pdfporUniversidade Federal Rural de PernambucoPrograma de Pós-Graduação em Física AplicadaUFRPEBrasilDepartamento de FísicaSupercondutorSupercondutor ferromagnéticoEnergia livreCIENCIAS EXATAS E DA TERRA::FISICASupercondutores ferromagnéticos no modelo de Ginzburg-Landauinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis2948194971945047520600600600-748177341945315287-8327146296503745929info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRPEinstname:Universidade Federal Rural de Pernambuco (UFRPE)instacron:UFRPEORIGINALSalomao Pereira de Queiroz.pdfSalomao Pereira de Queiroz.pdfapplication/pdf1510644http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/8520/2/Salomao+Pereira+de+Queiroz.pdfdcd62df4c200ef6c24aa08404e51341dMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82165http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/8520/1/license.txtbd3efa91386c1718a7f26a329fdcb468MD51tede2/85202023-09-22 16:41:44.7oai:tede2: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Biblioteca Digital de Teses e Dissertaçõeshttp://www.tede2.ufrpe.br:8080/tede/PUBhttp://www.tede2.ufrpe.br:8080/oai/requestbdtd@ufrpe.br ||bdtd@ufrpe.bropendoar:2024-05-28T12:37:06.418094Biblioteca Digital de Teses e Dissertações da UFRPE - Universidade Federal Rural de Pernambuco (UFRPE)false |
dc.title.por.fl_str_mv |
Supercondutores ferromagnéticos no modelo de Ginzburg-Landau |
title |
Supercondutores ferromagnéticos no modelo de Ginzburg-Landau |
spellingShingle |
Supercondutores ferromagnéticos no modelo de Ginzburg-Landau QUEIROZ, Salomão Pereira de Supercondutor Supercondutor ferromagnético Energia livre CIENCIAS EXATAS E DA TERRA::FISICA |
title_short |
Supercondutores ferromagnéticos no modelo de Ginzburg-Landau |
title_full |
Supercondutores ferromagnéticos no modelo de Ginzburg-Landau |
title_fullStr |
Supercondutores ferromagnéticos no modelo de Ginzburg-Landau |
title_full_unstemmed |
Supercondutores ferromagnéticos no modelo de Ginzburg-Landau |
title_sort |
Supercondutores ferromagnéticos no modelo de Ginzburg-Landau |
author |
QUEIROZ, Salomão Pereira de |
author_facet |
QUEIROZ, Salomão Pereira de |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
ROMAGUERA, Antonio Rodrigues de Castro |
dc.contributor.referee1.fl_str_mv |
SOUZA, Adauto José Ferreira de |
dc.contributor.referee2.fl_str_mv |
MIRANDA FILHO, Luciano Hugo |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/8837205286210231 |
dc.contributor.author.fl_str_mv |
QUEIROZ, Salomão Pereira de |
contributor_str_mv |
ROMAGUERA, Antonio Rodrigues de Castro SOUZA, Adauto José Ferreira de MIRANDA FILHO, Luciano Hugo |
dc.subject.por.fl_str_mv |
Supercondutor Supercondutor ferromagnético Energia livre |
topic |
Supercondutor Supercondutor ferromagnético Energia livre CIENCIAS EXATAS E DA TERRA::FISICA |
dc.subject.cnpq.fl_str_mv |
CIENCIAS EXATAS E DA TERRA::FISICA |
description |
We introduce the modi ed Ginzburg-Landau theory by means of a superconducting order parameter with two components and a magnetic order parameter with three components, as this allows the analysis of phase diagrams in the superconducting and ferromagnetic states. We also discuss the basic theories presented by some scholars who have attempted to explain the conductivity and, above all, superconductivity that have served as a basis in the studies of other works, such as the case of the treatment of electronic conduction behaving in the same way as a particulate gas, superconducting state to be treated as a two-uid model. We discuss in the rst chapter an introduction with a brief historical summary, from the discovery of the electron until when the superconductivity was known with cooling of materials, because the null resistance and the expulsion of the external magnetic elds are characterized, but the superconducting state is an intrinsic property of the material. We veri ed the theories of London, Ginzburg-landau and BCS that are related to the superconductivity and shown in the second chapter, in which we verify studies of microscopic and macroscopic phenomena, besides the classi cation of types I and II of this state of matter. A study on the coexistence of the ferromagnetic and superconducting phases is veri ed by means of spontaneous magnetization, starting from the normalized free energy density, presented in the third chapter. But we verify the phenomenology of GL with two order parameters in order to perform the behavior of some solutions of energy disunity by means of programming resources with the use of Mathematica and graphical analysis of the phase domains. |
publishDate |
2019 |
dc.date.issued.fl_str_mv |
2019-02-15 |
dc.date.accessioned.fl_str_mv |
2021-02-22T13:45:41Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
QUEIROZ, Salomão Pereira de. Supercondutores ferromagnéticos no modelo de Ginzburg-Landau. 2019. 49 f. Dissertação (Programa de Pós-Graduação em Física Aplicada) - Universidade Federal Rural de Pernambuco, Recife. |
dc.identifier.uri.fl_str_mv |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8520 |
identifier_str_mv |
QUEIROZ, Salomão Pereira de. Supercondutores ferromagnéticos no modelo de Ginzburg-Landau. 2019. 49 f. Dissertação (Programa de Pós-Graduação em Física Aplicada) - Universidade Federal Rural de Pernambuco, Recife. |
url |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8520 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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2948194971945047520 |
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600 600 600 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Universidade Federal Rural de Pernambuco |
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Programa de Pós-Graduação em Física Aplicada |
dc.publisher.initials.fl_str_mv |
UFRPE |
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Brasil |
dc.publisher.department.fl_str_mv |
Departamento de Física |
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Universidade Federal Rural de Pernambuco |
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Biblioteca Digital de Teses e Dissertações da UFRPE |
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