Effect of strontium deficiency on the transport and magnetic properties ofPr0.7Sr0.3MnO3

Authors
Abou-Ras, D Boujelben, W Cheikh-Rouhou, A Pierre, J Renard, JP Reversat, L Shimizu, K
Citation
D. Abou-ras et al., Effect of strontium deficiency on the transport and magnetic properties ofPr0.7Sr0.3MnO3, J MAGN MAGN, 233(3), 2001, pp. 147-154
Citations number
19
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
233
Issue
3
Year of publication
2001
Pages
147 - 154
Database
ISI
SICI code
0304-8853(200108)233:3<147:EOSDOT>2.0.ZU;2-V
Abstract
Ceramic samples of Pr0.7Sr0.3 (x)square xMnO3 with x less than or equal to0 .2 have been investigated by various techniques including Mn-55 nuclear mag netic resonance. SQUID magnetometry, resistivity and magneto resistance mea surements. On increasing x, the samples remain ferromagnetic at a low tempe rature with a decreasing Curie temperature, but a metal-insulator transitio n is observed. Besides, a positive magneto resistance (MR) at very low temp eratures with respect to a negative colossal MR at high temperatures is obs erved in the Pr(0.7)Sr(0.2)square 0.1MnO3 sample. (C) 2001 Elsevier Science B.V. All rights reserved.