Magnetoresistance in the double perovskite Sr2CrMoO6

Authors
Arulraj, A Ramesha, K Gopalakrishnan, J Rao, CNR
Citation
A. Arulraj et al., Magnetoresistance in the double perovskite Sr2CrMoO6, J SOL ST CH, 155(1), 2000, pp. 233-237
Citations number
11
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
JOURNAL OF SOLID STATE CHEMISTRY
ISSN journal
00224596 → ACNP
Volume
155
Issue
1
Year of publication
2000
Pages
233 - 237
Database
ISI
SICI code
0022-4596(20001115)155:1<233:MITDPS>2.0.ZU;2-2
Abstract
The double perovskite Sr2CrMoO6 with Cr3+-O-Mo5+ pairs is ferrimagnetic (T- N = 450 K), but there is considerable site disorder. The disorder appears t o be responsible for the low value of magnetization. At 5 or 6 T, the negat ive magnetoresistance (MR) is <5% at all temperatures, unlike Sr2FeMoO6 whi ch shows MR upto 27%. Tunneling magnetoresistance behavior of Sr2CrMoO6 is comparable to that of Sr2FeMoO6, but the magnitude is considerably smaller in the former, (C) 2000 Academic Press.