THE EFFECT OF ANNEALING ON THE MAGNETORESISTANCE OF POLYCRYSTALLINE (LA-Y-CA)MNO3 PEROVSKITES

Authors
NOSSOV A PIERRE J VASSILIEV V USTINOV V
Citation
A. Nossov et al., THE EFFECT OF ANNEALING ON THE MAGNETORESISTANCE OF POLYCRYSTALLINE (LA-Y-CA)MNO3 PEROVSKITES, Journal of physics. Condensed matter, 8(44), 1996, pp. 8513-8524
Citations number
21
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
8
Issue
44
Year of publication
1996
Pages
8513 - 8524
Database
ISI
SICI code
0953-8984(1996)8:44<8513:TEOAOT>2.0.ZU;2-D
Abstract
The magnetization, resistivity and magnetoresistance of yttrium-doped polycrystalline La0.6Y0.7Ca0.33MnO3 have been studied as a function of annealing conditions. The magnetoresistance amplitude depends upon th e annealing time, with an optimum corresponding to 12 h annealing at 1 200 degrees C under oxygen. Different contributions to the magnetoresi stance are separated; the first is related to the technical magnetizat ion, the second, dominant one, to the influence of the total magnetic induction on the band splitting and the spin correlation function.