TEMPERATURE-DEPENDENCE OF RESISTANCE AND MAGNETORESISTANCE OF NANOGRANULAR CO-AG FILMS

Authors
GERBER A MILNER A KORENBLIT IY KARPOVSKY M GLADKIKH A SULPICE A
Citation
A. Gerber et al., TEMPERATURE-DEPENDENCE OF RESISTANCE AND MAGNETORESISTANCE OF NANOGRANULAR CO-AG FILMS, Physical review. B, Condensed matter, 57(21), 1998, pp. 13667-13673
Citations number
29
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
57
Issue
21
Year of publication
1998
Pages
13667 - 13673
Database
ISI
SICI code
0163-1829(1998)57:21<13667:TORAMO>2.0.ZU;2-N
Abstract
We report a number of unusual features in the temperature dependence o f the resistance and the magnetoresistance of nanogranular Co-Ag films at low; temperatures. These include a nonmonotonic temperature depend ence of the resistance in a nonmagnetized state, anomalously low expon ents in the power-law temperature dependence of the resistivity (down to rho(proportional to)T(1.1)) at high magnetic field, and almost line ar temperature dependence of the giant magnetoresistance with no satur ation at low temperature.