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dc.contributor.author | Piñeiro Guillén, Ángel |
dc.contributor.author | Sánchez Botana, Antía |
dc.contributor.author | Pardo Castro, Víctor |
dc.contributor.author | Pereiro López, Manuel |
dc.contributor.author | Baldomir Fernández, Daniel |
dc.contributor.author | Arias Rodríguez, Juan Enrique |
dc.date.accessioned | 2018-11-21T14:05:55Z |
dc.date.available | 2018-11-21T14:05:55Z |
dc.date.issued | 2010 |
dc.identifier.citation | Piñeiro, A., Botana, A., Pardo, V., Botana, J., Pereiro, M., Baldomir, D., & Arias, J. (2011). Effects of applied pressure in ZnV2 O4 and evidences for a dimerized structure. Journal Of Applied Physics, 109(7), 07E158. doi: 10.1063/1.3565410 |
dc.identifier.issn | 0021-8979 |
dc.identifier.uri | http://hdl.handle.net/10347/17791 |
dc.description.abstract | The series of V spinels [A2+] V2 O4 (A = Cd, Mn, Zn, Mg) provides an opportunity to tune the V-V distance continuously, in the frustrated pyrochlore lattice of the spinel. This system has been shown to approach the metallic state when V-V distance is reduced. The proximity to the transition leads to a dimerized structure in ZnV2 O4 caused by lattice instabilities. A different manner to tune the V − V distance of this structure is to fix the A2+ cation (in our case, Zn) and apply pressure. We have analyzed the evolution of the electronic structure of the system in the dimerized state. Such structure prevents the system to present a metallic phase at moderate pressures. We have also calculated the transport properties in a semiclassical approach based on Boltzmann transport theory. Our results support the validity of this structural distortion by providing a nice fit with experimental measurements |
dc.description.sponsorship | The authors thank the CESGA (Centro de Supercomputacion de Galicia) for the computing facilities and the Ministerio de Educación y Ciencia (MEC) for the financial support through the project MAT2009-08165. A.S.B. thanks MEC for an FPU grant. J.B. and M.P. acknowledge Deputación da Coruña and the Isabel Barreto program respectively for financial support. We are also thankful to the Xunta de Galicia for financial support through the project INCITE08PXIB236052PR |
dc.language.iso | eng |
dc.publisher | AIP Publishing |
dc.rights | © 2011 American Institute of Physics |
dc.subject | Nonequilibrium statistical mechanics |
dc.subject | Oxides |
dc.subject | Band gap |
dc.subject | Resistivity measurements |
dc.subject | Pyrochlore |
dc.subject | Dimerization |
dc.subject | Thermoelectric effects |
dc.subject | Transport properties |
dc.subject | Bond length |
dc.subject | Phase transitions |
dc.title | Effects of applied pressure in ZnV2 O4 and evidences for a dimerized structure |
dc.type | journal article |
dc.identifier.doi | 10.1063/1.3565410 |
dc.relation.publisherversion | https://doi.org/10.1063/1.3565410 |
dc.type.hasVersion | VoR |
dc.identifier.essn | 1089-7550 |
dc.rights.accessRights | open access |
dc.contributor.affiliation | Universidade de Santiago de Compostela. Centro de Investigación en Tecnoloxías da Información |
dc.contributor.affiliation | Universidade de Santiago de Compostela. Departamento de Física Aplicada |
dc.description.peerreviewed | SI |
dc.relation.projectID | info:eu-repo/grantAgreement/MICINN/Plan Nacional de I+D+i 2008-2011/MAT2009-08165/ES/Estudio De La Separacion De Fases Cuanticas Para Transiciones Metal-Aislante Combinando Tecnicas Ab Initio, Analiticas Y Experimento |
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