Effects of electrochemical reduction on the magnetotransport properties ofLa0.67Ca0.33MnO3 +/-delta nanoparticles

Authors
Rivadulla, F Hueso, LE Rivas, J Blanco, MC Lopez-Quintela, MA Sanchez, RD
Citation
F. Rivadulla et al., Effects of electrochemical reduction on the magnetotransport properties ofLa0.67Ca0.33MnO3 +/-delta nanoparticles, J MAGN MAGN, 203, 1999, pp. 253-255
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
203
Year of publication
1999
Pages
253 - 255
Database
ISI
SICI code
0304-8853(199908)203:<253:EOEROT>2.0.ZU;2-L
Abstract
We report on the effect of electrochemical reduction on the magnetic and tr ansport properties of La0.67Ca0.33MnO3 +/- delta nanoparticles. We have obs erved a large displacement of the metal-insulator transition temperature (b ut not of the Curie temperature, T-c) in reduced samples. This behaviour is consistent with the existence of a magnetically inhomogeneous state below T-c, caused by random oxygen elimination. (C) 1999 Elsevier Science B.V. Al l rights reserved.