Competing orders in Uru2Si2: from ordered magnetism to spin liquid phases

Detalhes bibliográficos
Autor(a) principal: Farias, Carlene Paula Silva de
Data de Publicação: 2017
Tipo de documento: Tese
Idioma: por
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/jspui/handle/123456789/23653
Resumo: The main objective of this thesis is to investigate the competing ordered phases in the metallic heavy fermion compound URu2Si2, which displays a bodycentered tetragonal lattice. We first provide a study case of the competition between antiferromagnetic (AF) and spin liquid phases. The antiferromagnetic state is study with spin-wave theory. Whereas the spin liquid analysis has been carried out in an algebraic spin liquid representation. In the second part, we describe an effective theory for Raman scattering experiments at these particular phases. We provide insight about the hidden order phase displayed by the heavy fermion compound URu2Si2.
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spelling Farias, Carlene Paula Silva dehttp://lattes.cnpq.br/5575148931035488http://lattes.cnpq.br/1699997982151255Pereira, Rodrigo Gonçalveshttp://lattes.cnpq.br/9293110312400359Macri, Tommasohttp://lattes.cnpq.br/4580166672949340Pagliuso, Pascoalhttp://lattes.cnpq.br/0237905234427383Magalhães, Sérgio Garciahttp://lattes.cnpq.br/8564675492283232Ferraz Filho, Álvaro2017-07-18T14:15:39Z2017-07-18T14:15:39Z2017-04-10FARIAS, Carlene Paula Silva de. Competing orders in Uru2Si2: from ordered magnetism to spin liquid phases. 2017. 121f. Tese (Doutorado em Física) - Centro de Ciências Exatas e da Terra, Universidade Federal do Rio Grande do Norte, Natal, 2017.https://repositorio.ufrn.br/jspui/handle/123456789/23653The main objective of this thesis is to investigate the competing ordered phases in the metallic heavy fermion compound URu2Si2, which displays a bodycentered tetragonal lattice. We first provide a study case of the competition between antiferromagnetic (AF) and spin liquid phases. The antiferromagnetic state is study with spin-wave theory. Whereas the spin liquid analysis has been carried out in an algebraic spin liquid representation. In the second part, we describe an effective theory for Raman scattering experiments at these particular phases. We provide insight about the hidden order phase displayed by the heavy fermion compound URu2Si2.L’objectif central de cette thèse est d’étudier des phases ordonnées en compétition dans des matériaux magnétiques présentant une structure cristalline tétragonale centrée. Ce travail est divisé en deux parties principales. Dans la première, nous présentons les résultats de notre étude de la compétition entre des états ordonnés antiferromagnétiques et des phases liquides de spin. Nous montrons comment ces dernières peuvent être stabilisées par la frustration géométrique et par une généralisation de la symétrie de spin au groupe SU(n). Les états antiferromagnétiques sont décrits par une théorie d’onde de spin et l’analyse de liquide de spin est effectuée par une représentation fermionique des opérateurs de spin. Dans la deuxième partie, nous décrivons une théorie effective pour dércrire des expériences de diffusion Raman. Nous fournissons un aperçu de la phase d’ordre caché affichée par le composé de fermions lourds URu2Si2.porCNPQ::CIENCIAS EXATAS E DA TERRA::FISICAAntiferromagnetismSpin liquidHidden orderRaman scatteringBCT latticePoint group symmetryCompeting orders in Uru2Si2: from ordered magnetism to spin liquid phasesOrdres en compétition dans URu2Si2: de l’ordre magnétique aux phases de liquide de spininfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisPROGRAMA DE PÓS-GRADUAÇÃO EM FÍSICAUFRNBrasilinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALCarlenePaulaSilvaDeFarias_TESE.pdfCarlenePaulaSilvaDeFarias_TESE.pdfapplication/pdf2704270https://repositorio.ufrn.br/bitstream/123456789/23653/1/CarlenePaulaSilvaDeFarias_TESE.pdfe91db3c02fe5efc2e77e088d861955c8MD51TEXTCarlenePaulaSilvaDeFarias_TESE.pdf.txtCarlenePaulaSilvaDeFarias_TESE.pdf.txtExtracted texttext/plain208781https://repositorio.ufrn.br/bitstream/123456789/23653/4/CarlenePaulaSilvaDeFarias_TESE.pdf.txt154c08d80b402eefb00ed713edaaf963MD54THUMBNAILCarlenePaulaSilvaDeFarias_TESE.pdf.jpgCarlenePaulaSilvaDeFarias_TESE.pdf.jpgIM Thumbnailimage/jpeg3416https://repositorio.ufrn.br/bitstream/123456789/23653/5/CarlenePaulaSilvaDeFarias_TESE.pdf.jpg9f7c2ffc342062e632c5bfcb98a44a3fMD55123456789/236532017-11-04 14:36:55.955oai:https://repositorio.ufrn.br:123456789/23653Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2017-11-04T17:36:55Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.pt_BR.fl_str_mv Competing orders in Uru2Si2: from ordered magnetism to spin liquid phases
dc.title.alternative.pt_BR.fl_str_mv Ordres en compétition dans URu2Si2: de l’ordre magnétique aux phases de liquide de spin
title Competing orders in Uru2Si2: from ordered magnetism to spin liquid phases
spellingShingle Competing orders in Uru2Si2: from ordered magnetism to spin liquid phases
Farias, Carlene Paula Silva de
CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA
Antiferromagnetism
Spin liquid
Hidden order
Raman scattering
BCT lattice
Point group symmetry
title_short Competing orders in Uru2Si2: from ordered magnetism to spin liquid phases
title_full Competing orders in Uru2Si2: from ordered magnetism to spin liquid phases
title_fullStr Competing orders in Uru2Si2: from ordered magnetism to spin liquid phases
title_full_unstemmed Competing orders in Uru2Si2: from ordered magnetism to spin liquid phases
title_sort Competing orders in Uru2Si2: from ordered magnetism to spin liquid phases
author Farias, Carlene Paula Silva de
author_facet Farias, Carlene Paula Silva de
author_role author
dc.contributor.authorID.pt_BR.fl_str_mv
dc.contributor.authorLattes.none.fl_str_mv http://lattes.cnpq.br/5575148931035488
dc.contributor.advisorID.pt_BR.fl_str_mv
dc.contributor.advisorLattes.none.fl_str_mv http://lattes.cnpq.br/1699997982151255
dc.contributor.referees1.none.fl_str_mv Pereira, Rodrigo Gonçalves
dc.contributor.referees1ID.pt_BR.fl_str_mv
dc.contributor.referees1Lattes.none.fl_str_mv http://lattes.cnpq.br/9293110312400359
dc.contributor.referees2.none.fl_str_mv Macri, Tommaso
dc.contributor.referees2ID.pt_BR.fl_str_mv
dc.contributor.referees2Lattes.none.fl_str_mv http://lattes.cnpq.br/4580166672949340
dc.contributor.referees3.none.fl_str_mv Pagliuso, Pascoal
dc.contributor.referees3ID.pt_BR.fl_str_mv
dc.contributor.referees3Lattes.none.fl_str_mv http://lattes.cnpq.br/0237905234427383
dc.contributor.referees4.none.fl_str_mv Magalhães, Sérgio Garcia
dc.contributor.referees4ID.pt_BR.fl_str_mv
dc.contributor.referees4Lattes.none.fl_str_mv http://lattes.cnpq.br/8564675492283232
dc.contributor.author.fl_str_mv Farias, Carlene Paula Silva de
dc.contributor.advisor1.fl_str_mv Ferraz Filho, Álvaro
contributor_str_mv Ferraz Filho, Álvaro
dc.subject.cnpq.fl_str_mv CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA
topic CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA
Antiferromagnetism
Spin liquid
Hidden order
Raman scattering
BCT lattice
Point group symmetry
dc.subject.por.fl_str_mv Antiferromagnetism
Spin liquid
Hidden order
Raman scattering
BCT lattice
Point group symmetry
description The main objective of this thesis is to investigate the competing ordered phases in the metallic heavy fermion compound URu2Si2, which displays a bodycentered tetragonal lattice. We first provide a study case of the competition between antiferromagnetic (AF) and spin liquid phases. The antiferromagnetic state is study with spin-wave theory. Whereas the spin liquid analysis has been carried out in an algebraic spin liquid representation. In the second part, we describe an effective theory for Raman scattering experiments at these particular phases. We provide insight about the hidden order phase displayed by the heavy fermion compound URu2Si2.
publishDate 2017
dc.date.accessioned.fl_str_mv 2017-07-18T14:15:39Z
dc.date.available.fl_str_mv 2017-07-18T14:15:39Z
dc.date.issued.fl_str_mv 2017-04-10
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/doctoralThesis
format doctoralThesis
status_str publishedVersion
dc.identifier.citation.fl_str_mv FARIAS, Carlene Paula Silva de. Competing orders in Uru2Si2: from ordered magnetism to spin liquid phases. 2017. 121f. Tese (Doutorado em Física) - Centro de Ciências Exatas e da Terra, Universidade Federal do Rio Grande do Norte, Natal, 2017.
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/jspui/handle/123456789/23653
identifier_str_mv FARIAS, Carlene Paula Silva de. Competing orders in Uru2Si2: from ordered magnetism to spin liquid phases. 2017. 121f. Tese (Doutorado em Física) - Centro de Ciências Exatas e da Terra, Universidade Federal do Rio Grande do Norte, Natal, 2017.
url https://repositorio.ufrn.br/jspui/handle/123456789/23653
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.program.fl_str_mv PROGRAMA DE PÓS-GRADUAÇÃO EM FÍSICA
dc.publisher.initials.fl_str_mv UFRN
dc.publisher.country.fl_str_mv Brasil
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRN
instname:Universidade Federal do Rio Grande do Norte (UFRN)
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