Electrodynamics near the metal-to-insulator transition in V3O5 (Articolo in rivista)

Type
Label
  • Electrodynamics near the metal-to-insulator transition in V3O5 (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.75.245108 (literal)
Alternative label
  • Baldassarre, L; Perucchi, A; Arcangeletti, E; Nicoletti, D; Di Castro, D; Postorino, P; Sidorov, VA; Lupi, S (2007)
    Electrodynamics near the metal-to-insulator transition in V3O5
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Baldassarre, L; Perucchi, A; Arcangeletti, E; Nicoletti, D; Di Castro, D; Postorino, P; Sidorov, VA; Lupi, S (literal)
Pagina inizio
  • 245108 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 75 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 6 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Roma La Sapienza, CNR INFM, COHERENTIA, I-00161 Rome, Italy; Univ Roma La Sapienza, Dipartimento Fis, I-00161 Rome, Italy; Russian Acad Sci, Inst High Pressure Phys, Troitsk 142190, Moscow Region, Russia (literal)
Titolo
  • Electrodynamics near the metal-to-insulator transition in V3O5 (literal)
Abstract
  • The electrodynamics near the metal-to-insulator transitions induced, in V3O5 single crystals, by both temperature (T) and pressure (P) has been studied by infrared spectroscopy. The T and P dependence of the optical conductivity may be explained within a polaronic scenario. The insulating phase at ambient T and P corresponds to strongly localized small polarons. Meanwhile the T-induced metallic phase at ambient pressure is related to a liquid of polarons showing incoherent dc transport, in the P-induced metallic phase at room T strongly localized polarons coexist with partially delocalized ones. The electronic spectral weight is almost recovered, in both the T- and P-induced metallization processes, on an energy scale of 1 eV, thus supporting the key role of electron-lattice interaction in the V3O5 metal-to-insulator transitions. (literal)
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