GIANT MAGNETOTRANSPORT AND MAGNETOSTRUCTURAL PHENOMENA IN HOLE-DOPED MANGANESE OXIDES

Authors
TOKURA T URUSHIBARA A MORITOMO Y ASAMITSU A TOMIOKA Y ARIMA T KIDO G
Citation
T. Tokura et al., GIANT MAGNETOTRANSPORT AND MAGNETOSTRUCTURAL PHENOMENA IN HOLE-DOPED MANGANESE OXIDES, Materials science & engineering. B, Solid-state materials for advanced technology, 31(1-2), 1995, pp. 187-191
Citations number
12
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Materials science & engineering. B, Solid-state materials for advanced technology → ACNP
ISSN journal
09215107
Volume
31
Issue
1-2
Year of publication
1995
Pages
187 - 191
Database
ISI
SICI code
0921-5107(1995)31:1-2<187:GMAMPI>2.0.ZU;2-C
Abstract
Giant magnetotransport phenomena have been investigated for single cry stals of perovskite-type La1-xSrxMnO3 and related compounds. Magnetore sistance (MR) with negative sign shows a universal curve as a function of the magnetization, the body of which is quantitatively accounted f or by the mean-field theory of the Kondo lattice model with strong fer romagnetic (Hund) coupling. Furthermore, magnetic field-induced struct ural change has been found between the two types of slightly distorted perovskite structure perhaps due to the strong coupling between the e lectronic and lattice degrees of freedom in these hole-doped Mn-oxides .