Conductivity of La1-xCaxMnO3 under magnetic resonance of Mn ions

Authors
Laiho, R Lahderanta, E Vlasenko, LS Vlasenko, MP Zakhvalinskii, VS
Citation
R. Laiho et al., Conductivity of La1-xCaxMnO3 under magnetic resonance of Mn ions, PHYS SOL ST, 43(3), 2001, pp. 489-492
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICS OF THE SOLID STATE
ISSN journal
10637834 → ACNP
Volume
43
Issue
3
Year of publication
2001
Pages
489 - 492
Database
ISI
SICI code
1063-7834(2001)43:3<489:COLUMR>2.0.ZU;2-J
Abstract
A change in the electrical conductivity, sigma, is observed in the manganes e perovskite La1 - xCaxMnO3, with x = 0 and 0.3 under saturation of the mag netic resonance transitions of Mn ions. This effect has a maximum in the te mperature range of the magnetic phase transition of the compounds. Two cont ributions to the change in sigma are found. The first, dominating in LaMnO3 , is an increase in sigma caused by heating of the sample under magnetic re sonance. The second is a sigma decrease due to reorientation of the Mn spin s, observed in La0.7Ca0.3MnO3. (C) 2001 MAIK "Nauka/Interperiodica".