Phase diagram of the heavy fermion system YbFe/sub 2/Ge/sub 2/ under pressure
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2006 |
| Outros Autores: | , , , , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Institucional da UFRGS |
| Texto Completo: | http://hdl.handle.net/10183/109092 |
Resumo: | The phase diagram of the heavy fermion compound YbFe2Ge2 under high pressures P ≤ 18.2 GPa was obtained by electrical resistivity measurements. Pressure drives the system from a paramagnetic Fermi liquid state to a magnetically ordered state, with a quantum critical point at PC ≈ 9.4 GPa. In the vicinity of PC a non-Fermi-liquid behavior ascribed to two-dimensional antiferromagnetic fluctuations is observed. In the magnetic side, the resistivity shows the existence of spin-wave excitations characteristic of an antiferromagnet. |
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Larrea Jiménez, Julio AntonioFontes, Magda BittencourtBaggio-Saitovitch, E.Plessel, JochenAbd-Elmeguid, Mohsen M.Ferstl, JuliaGeibel, ChristophPereira, Altair SoriaJornada, Joao Alziro Herz daContinentino, Mucio Amado2015-01-21T02:17:23Z20061098-0121http://hdl.handle.net/10183/109092000564116The phase diagram of the heavy fermion compound YbFe2Ge2 under high pressures P ≤ 18.2 GPa was obtained by electrical resistivity measurements. Pressure drives the system from a paramagnetic Fermi liquid state to a magnetically ordered state, with a quantum critical point at PC ≈ 9.4 GPa. In the vicinity of PC a non-Fermi-liquid behavior ascribed to two-dimensional antiferromagnetic fluctuations is observed. In the magnetic side, the resistivity shows the existence of spin-wave excitations characteristic of an antiferromagnet.application/pdfengPhysical review. B, Condensed matter and materials physics. Woodbury. Vol. 74, no. 14 (Oct. 2006), 140406R, 4p.Instabilidades eletromagneticasSupercondutividadeFermionsDiagramas de fasePhase diagram of the heavy fermion system YbFe/sub 2/Ge/sub 2/ under pressureEstrangeiroinfo: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:UFRGSORIGINAL000564116.pdf000564116.pdfTexto completo (inglês)application/pdf320678http://www.lume.ufrgs.br/bitstream/10183/109092/1/000564116.pdf4e0789a43e10d95a0edfb6efc52241f6MD51TEXT000564116.pdf.txt000564116.pdf.txtExtracted Texttext/plain20791http://www.lume.ufrgs.br/bitstream/10183/109092/2/000564116.pdf.txte7721453437ddac031fe0f633617a64aMD52THUMBNAIL000564116.pdf.jpg000564116.pdf.jpgGenerated Thumbnailimage/jpeg2196http://www.lume.ufrgs.br/bitstream/10183/109092/3/000564116.pdf.jpg965245e7752a6a8f36767bc6239db463MD5310183/1090922024-01-17 04:28:00.207176oai:www.lume.ufrgs.br:10183/109092Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-01-17T06:28Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
| dc.title.pt_BR.fl_str_mv |
Phase diagram of the heavy fermion system YbFe/sub 2/Ge/sub 2/ under pressure |
| title |
Phase diagram of the heavy fermion system YbFe/sub 2/Ge/sub 2/ under pressure |
| spellingShingle |
Phase diagram of the heavy fermion system YbFe/sub 2/Ge/sub 2/ under pressure Larrea Jiménez, Julio Antonio Instabilidades eletromagneticas Supercondutividade Fermions Diagramas de fase |
| title_short |
Phase diagram of the heavy fermion system YbFe/sub 2/Ge/sub 2/ under pressure |
| title_full |
Phase diagram of the heavy fermion system YbFe/sub 2/Ge/sub 2/ under pressure |
| title_fullStr |
Phase diagram of the heavy fermion system YbFe/sub 2/Ge/sub 2/ under pressure |
| title_full_unstemmed |
Phase diagram of the heavy fermion system YbFe/sub 2/Ge/sub 2/ under pressure |
| title_sort |
Phase diagram of the heavy fermion system YbFe/sub 2/Ge/sub 2/ under pressure |
| author |
Larrea Jiménez, Julio Antonio |
| author_facet |
Larrea Jiménez, Julio Antonio Fontes, Magda Bittencourt Baggio-Saitovitch, E. Plessel, Jochen Abd-Elmeguid, Mohsen M. Ferstl, Julia Geibel, Christoph Pereira, Altair Soria Jornada, Joao Alziro Herz da Continentino, Mucio Amado |
| author_role |
author |
| author2 |
Fontes, Magda Bittencourt Baggio-Saitovitch, E. Plessel, Jochen Abd-Elmeguid, Mohsen M. Ferstl, Julia Geibel, Christoph Pereira, Altair Soria Jornada, Joao Alziro Herz da Continentino, Mucio Amado |
| author2_role |
author author author author author author author author author |
| dc.contributor.author.fl_str_mv |
Larrea Jiménez, Julio Antonio Fontes, Magda Bittencourt Baggio-Saitovitch, E. Plessel, Jochen Abd-Elmeguid, Mohsen M. Ferstl, Julia Geibel, Christoph Pereira, Altair Soria Jornada, Joao Alziro Herz da Continentino, Mucio Amado |
| dc.subject.por.fl_str_mv |
Instabilidades eletromagneticas Supercondutividade Fermions Diagramas de fase |
| topic |
Instabilidades eletromagneticas Supercondutividade Fermions Diagramas de fase |
| description |
The phase diagram of the heavy fermion compound YbFe2Ge2 under high pressures P ≤ 18.2 GPa was obtained by electrical resistivity measurements. Pressure drives the system from a paramagnetic Fermi liquid state to a magnetically ordered state, with a quantum critical point at PC ≈ 9.4 GPa. In the vicinity of PC a non-Fermi-liquid behavior ascribed to two-dimensional antiferromagnetic fluctuations is observed. In the magnetic side, the resistivity shows the existence of spin-wave excitations characteristic of an antiferromagnet. |
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2006 |
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2006 |
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2015-01-21T02:17:23Z |
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Estrangeiro info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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article |
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http://hdl.handle.net/10183/109092 |
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1098-0121 |
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000564116 |
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http://hdl.handle.net/10183/109092 |
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eng |
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Physical review. B, Condensed matter and materials physics. Woodbury. Vol. 74, no. 14 (Oct. 2006), 140406R, 4p. |
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