LARGE MAGNETORESISTANCE EFFECTS IN SELF-DOPED LA0.936MN0.982O3 SINGLE-CRYSTALS

Authors
MCCARROLL WH RAMANUJACHARY KV GREENBLATT M COSANDEY F
Citation
Wh. Mccarroll et al., LARGE MAGNETORESISTANCE EFFECTS IN SELF-DOPED LA0.936MN0.982O3 SINGLE-CRYSTALS, Journal of solid state chemistry, 136(2), 1998, pp. 322-327
Citations number
27
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Physical
Journal title
Journal of solid state chemistry → ACNP
ISSN journal
00224596
Volume
136
Issue
2
Year of publication
1998
Pages
322 - 327
Database
ISI
SICI code
0022-4596(1998)136:2<322:LMEISL>2.0.ZU;2-O
Abstract
We report here for the first time colossal magnetoresistance effects ( similar to 77% MR at 5 T) in bulk single crystals of self-doped La0.93 6Mn0.982O3 prepared by fused-salt electrolysis. The crystals form with rhombohedral symmetry and show a high degree of perfection by electro n backscatter diffraction. The maximum in the MR% was observed in the vicinity of similar to 250 K where the crystals undergo a sharp insula tor-to-metal as well as a paramagnetic-to-ferromagnetic transition. (C ) 1998 Academic Press.