Magnetic ordering and Kondo-like effect in the double-exchange ferromagnet(Pro(0.1)Ce(0.4)Sr(0.5))MnO3

Authors
Martinez, G Iglesias, JR Ruppenthal, AR Avignon, JM Lacroix, C
Citation
G. Martinez et al., Magnetic ordering and Kondo-like effect in the double-exchange ferromagnet(Pro(0.1)Ce(0.4)Sr(0.5))MnO3, J MAGN MAGN, 226, 2001, pp. 214-215
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
226
Year of publication
2001
Part
1
Pages
214 - 215
Database
ISI
SICI code
0304-8853(200105)226:<214:MOAKEI>2.0.ZU;2-1
Abstract
We present a theoretical explanation of recent neutron-diffraction experime nts reporting the possible occurrence of Kondo-like effect and anomalous ma gnetic ordering of cerium in the double-exchange ferromagnet (Pr0.1Ce0.4Sr0 .5)MnO3. The magnetic behavior of this compound is quantitatively reproduce d by a model of two interacting sublattices representing the Mn-sites and t he Ce-sites. The minimum of the magnetization at low temperatures is due to a ferrimagnetic situation which is sensitively determined by spin-polarize d conduction-band electrons. (C) 2001 Elsevier Science B.V. All rights rese rved.