VO: a strongly correlated metal close to a Mott-Hubbard transition
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Título: | VO: a strongly correlated metal close to a Mott-Hubbard transition |
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Autor/es: | Rivadulla Fernández, Francisco | Fernández-Rossier, Joaquín | García Hernández, M. | López Quintela, M. Arturo | Rivas Rey, José | Goodenough, John B. |
Grupo/s de investigación o GITE: | Grupo de Nanofísica |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Física Aplicada |
Palabras clave: | VO | Strongly correlated metal | Mott-Hubbard transition |
Área/s de conocimiento: | Física de la Materia Condensada |
Fecha de publicación: | 19-nov-2007 |
Editor: | American Physical Society |
Cita bibliográfica: | RIVADULLA, F., et al. “VO: a strongly correlated metal close to a Mott-Hubbard transition”. Physical Review B. Vol. 76, No. 20 (2007). ISSN 1098-0121, pp. 205110-1/6 |
Resumen: | Here, we present experimental and computational evidences to support that rocksalt cubic VO is a strongly correlated metal with non-Fermi-liquid thermodynamics and an unusually strong spin-lattice coupling. An unexpected change of sign of metallic thermopower with composition is tentatively ascribed to the presence of a pseudogap in the density of states. These properties are discussed as signatures of the proximity to a magnetic quantum phase transition. The results are summarized in an electronic phase diagram for the 3d monoxides, which resembles that of other strongly correlated systems. The structural and electronic simplicity of 3d monoxides makes them ideal candidates to progress in the understanding of highly correlated electron systems. |
Patrocinador/es: | Financial support from Xunta de Galicia (Project No. PXIB20919PR), the Ministry of Science of Spain (MAT2004-05130-C02-01 and MAT2005-06024-C02-01), and Program Ramón y Cajal (F.R.). |
URI: | http://hdl.handle.net/10045/25228 |
ISSN: | 1098-0121 (Print) | 1550-235X (Online) |
DOI: | 10.1103/PhysRevB.76.205110 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2007 The American Physical Society |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1103/PhysRevB.76.205110 |
Aparece en las colecciones: | INV - Grupo de Nanofísica - Artículos de Revistas |
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2007_PhysRevB.76.205110.pdf | 1,06 MB | Adobe PDF | Abrir Vista previa | |
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