Colossal magnetoresistance in the layered chromium sulfide Cr2S3-x (x=0.08) - art. no. 132402

Authors
Vaqueiro, P Powell, AV Coldea, AI Steer, CA Marshall, IM Blundell, SJ Singleton, J Ohtani, T
Citation
P. Vaqueiro et al., Colossal magnetoresistance in the layered chromium sulfide Cr2S3-x (x=0.08) - art. no. 132402, PHYS REV B, 6413(13), 2001, pp. 2402
Citations number
19
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
6413
Issue
13
Year of publication
2001
Database
ISI
SICI code
0163-1829(20011001)6413:13<2402:CMITLC>2.0.ZU;2-G
Abstract
We report structural, magnetic, and magnetotransport properties of the two- dimensional chromium sulfide Cr2S2.92, which contains both Cr3+ and Cr2+ io ns. Below its magnetic-ordering temperature (T-N = 118 K), Cr2S2.92 exhibit s a weak spontaneous magnetization with a maximum around 90 K and a value o f 0.013(4) mu (B) per Cr ion at 5 K. The resistivity and magnetoresistance exhibit pronounced local maxima around T-N (MR = 48% in a field of 14 T). T he magnetotransport properties are discussed in terms of magnetic-polaron f ormation.