Possible non-Fermi-liquid behavior of CaRuO3

Authors
Klein, L Antognazza, L Geballe, TH Beasley, MR Kapitulnik, A
Citation
L. Klein et al., Possible non-Fermi-liquid behavior of CaRuO3, PHYS REV B, 60(3), 1999, pp. 1448-1451
Citations number
25
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
60
Issue
3
Year of publication
1999
Pages
1448 - 1451
Database
ISI
SICI code
0163-1829(19990715)60:3<1448:PNBOC>2.0.ZU;2-Z
Abstract
We measured the resistivity (rho) and magnetoresistance (Delta rho/rho) of the metallic pseudocubic perovskite CaRuO3. At high temperatures, rho = a bT(0.5) and Delta rho/rho is negative. At low temperatures, rho = a + bT(1 .5) and Delta rho/rho changes sign as a function of the applied magnetic fi eld. Both at high temperatures and at low temperatures, rho deviates strong ly from the resistivity of Fermi-liquid metals; we therefore discuss the po ssibility that CaRuO3 is a non-Fermi-liquid metal. [S0163-1829(99)04808-0].