PR-DOPING OF THE HIGH-MAGNETORESISTANCE PEROVSKITE ND2 3SR1/3MNO3/

Authors
JIA YX LU L KHAZENI K YEN D LEE CS ZETTL A
Citation
Yx. Jia et al., PR-DOPING OF THE HIGH-MAGNETORESISTANCE PEROVSKITE ND2 3SR1/3MNO3/, Solid state communications, 94(11), 1995, pp. 917-920
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
94
Issue
11
Year of publication
1995
Pages
917 - 920
Database
ISI
SICI code
0038-1098(1995)94:11<917:POTHPN>2.0.ZU;2-P
Abstract
We have investigated the effect of Pr-doping on the Nd-sites in the hi gh magnetoresistance (MR) perovskite Nd2/3Sr1/3MnO3. For polycrystalli ne materials, negative MR as high as similar to 235% is observed near 237K in pure Nd2/3Sr1/3MnO3. The substitution of Pr for Nd leads to a reduction in the overall MR, and an increase of the MR-peak temperatur e. We investigate the possibility that the large negative MR originate s from the formation of localized magnetic polarons.