Co doping effects on the magnetic and magnetoresistance in SM0.35Nd0.35Pb0.30Mn1-xCoxO3 (x=0, 0.1, 0.2)

Authors
Moreno, NO Campoy, JCP Blanco, JJ Insausti, M Rojo, T Barberis, GE
Citation
No. Moreno et al., Co doping effects on the magnetic and magnetoresistance in SM0.35Nd0.35Pb0.30Mn1-xCoxO3 (x=0, 0.1, 0.2), J MAGN MAGN, 226, 2001, pp. 834-836
Citations number
6
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
834 - 836
Database
ISI
SICI code
0304-8853(200105)226:<834:CDEOTM>2.0.ZU;2-Q
Abstract
Polycrystalline samples of the Sm0.35Nd0.35Pb0.35Mn1-xCoxO3 (x = 0, 0.1, 0. 2) at low magnetic fields has been studied by AC susceptibility, and field cooled and zero field cooled magnetisation measurements. We conclude that a small amount of Co substitution tends to destroy the double exchange and b roadens the coexistence region of the cluster-glass and ferromagnetic state s. Also. the Co doping suppresses the large negative magneto resistance and it becomes small for x = 0.2. (C) 2001 Published by Elsevier Science B.V.