METAL-INSULATOR-TRANSITION IN OXYGEN-DEFICIENT LANIO3-X PEROVSKITES

Authors
SANCHEZ RD CAUSA MT CANEIRO A BUTERA A VALLETREGI M SAYAGUES MJ GONZALEZCALBET J GARCIASANZ F RIVAS J
Citation
Rd. Sanchez et al., METAL-INSULATOR-TRANSITION IN OXYGEN-DEFICIENT LANIO3-X PEROVSKITES, Physical review. B, Condensed matter, 54(23), 1996, pp. 16574-16578
Citations number
31
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
54
Issue
23
Year of publication
1996
Pages
16574 - 16578
Database
ISI
SICI code
0163-1829(1996)54:23<16574:MIOLP>2.0.ZU;2-7
Abstract
In this work we present a study of the magnetic and transport properti es of the system LaNiO3-x (0 less than or equal to x less than or equa l to 0.5) where the x=0 members is a well-known metallic oxide. We fou nd the x=0.5 compound is an antiferromagnetic insulator at room temper ature. The metal-insulator transition is observed for an x value aroun d x greater than or equal to 0.25. The role played by the sample inhom ogeneities on the occurrence of this transition is discussed.