http://www.cnr.it/ontology/cnr/individuo/prodotto/ID324203
Metal-insulator transition in NiS2-xSex: chemical vs external pressure effects (Articolo in rivista)
- Type
- Label
- Metal-insulator transition in NiS2-xSex: chemical vs external pressure effects (Articolo in rivista) (literal)
- Anno
- 2011-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1080/08957959.2010.516826 (literal)
- Alternative label
Marini, C.; Valentini, M.; Perucchi, A.; Dore, P.; Sarma, D. D.; Lupi, S.; Postorino, P. (2011)
Metal-insulator transition in NiS2-xSex: chemical vs external pressure effects
in High pressure research
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Marini, C.; Valentini, M.; Perucchi, A.; Dore, P.; Sarma, D. D.; Lupi, S.; Postorino, P. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- European Synchrotron Radiat Facil; Consiglio Nazionale delle Ricerche (CNR); Sapienza University Rome; Sincrotrone Trieste; Consiglio Nazionale delle Ricerche (CNR); Indian Association for the Cultivation of Science (literal)
- Titolo
- Metal-insulator transition in NiS2-xSex: chemical vs external pressure effects (literal)
- Abstract
- The Se alloying (x)- and the pressure (P)-induced metal-insulator transitions on the strongly correlated NiS2-xSex system have been investigated through Raman and infrared (IR) spectroscopies. Raman and IR responses of NiS2 to lattice compression are correlated to a metallization transition, occurring at 4GPa. This result suggests a strong interaction between lattice and electronic degrees of freedom. In particular, IR measurements carried out by applying P on NiS2 (i.e. lattice contraction) and on Se alloying (i.e. lattice expansion) reveal that in both cases a metallic state is obtained. Our optical spectroscopy results deviate from the idea of a simple scaling factor between P and x previously claimed by transport measurements, but, on the contrary, point out the substantially different microscopic origin of the two transitions. (literal)
- Prodotto di
- Autore CNR
- Insieme di parole chiave
Incoming links:
- Autore CNR di
- Prodotto
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
- Insieme di parole chiave di