MAGNETOTRANSPORT PROPERTIES OF LA0.6PB0.4MNO3-DELTA AND ND-0.6(SR0.7PB0.3)(0.4)MNO3-DELTA SINGLE-CRYSTALS

Authors
JIA YX LU L KHAZENI K CRESPI VH ZETTL A COHEN ML
Citation
Yx. Jia et al., MAGNETOTRANSPORT PROPERTIES OF LA0.6PB0.4MNO3-DELTA AND ND-0.6(SR0.7PB0.3)(0.4)MNO3-DELTA SINGLE-CRYSTALS, Physical review. B, Condensed matter, 52(13), 1995, pp. 9147-9150
Citations number
20
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
52
Issue
13
Year of publication
1995
Pages
9147 - 9150
Database
ISI
SICI code
0163-1829(1995)52:13<9147:MPOLAN>2.0.ZU;2-0
Abstract
Magnetotransport measurements of high-quality single crystals of La0.6 Pb0.4MnO3-delta and Nd-0.6(Sr0.7Pb0.3)(0.4)MnO3-delta show a close rel ationship between giant magnetoresistance and the ferromagnetic orderi ng transition in these materials. In contrast to results for thin film and polycrystalline materials, magnetoresistance of these single crys tals vanishes as T-->0. A two-component polaron model provides a possi ble framework for the interpretation of the previously unexplained var iation in the functional form of rho(H) above and below the Curie temp erature.