MAGNETORESISTANCE EFFECT IN BULK SAMPLES OF LA0.67CA0.33MNO3 UNDER A LOW MAGNETIC-FIELD

Authors
BHAR GC CHATTERJEE U TSUKAMOTO K YANAGISAWA T OBARA A SHEN H
Citation
Gc. Bhar et al., MAGNETORESISTANCE EFFECT IN BULK SAMPLES OF LA0.67CA0.33MNO3 UNDER A LOW MAGNETIC-FIELD, Journal of magnetism and magnetic materials, 188(1-2), 1998, pp. 180-184
Citations number
19
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
188
Issue
1-2
Year of publication
1998
Pages
180 - 184
Database
ISI
SICI code
0304-8853(1998)188:1-2<180:MEIBSO>2.0.ZU;2-R
Abstract
The magnetoresistance effect of bulk samples of La0.67Ca0.33MnO3, prep ared by the sol-gel method has been studied under a low applied magnet ic field. Quite a large (-37%) negative magnetoresistance ratio (MR) h as been obtained at a relatively 'higher' temperature (190 K) with an applied external magnetic field intensity as low as 0.6 T. Observation of the MR peak at a temperature greater than the insulator-metal tran sition temperature has been made for the first time. (C) 1998 Elsevier Science B.V. All rights reserved.