Mossbauer characterization of Nd0.7Sr0.3((Mn1-xFex)-Fe-57)O-3 (x=0.02-0.15)

Authors
Hamdeh, HH Ho, JC Oliver, SA Lin, JG Lin, SY Kuo, PC Huang, CY
Citation
Hh. Hamdeh et al., Mossbauer characterization of Nd0.7Sr0.3((Mn1-xFex)-Fe-57)O-3 (x=0.02-0.15), J MAGN MAGN, 232(3), 2001, pp. 175-180
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
232
Issue
3
Year of publication
2001
Pages
175 - 180
Database
ISI
SICI code
0304-8853(200107)232:3<175:MCON(>2.0.ZU;2-2
Abstract
The magnetic structure of colossal magneto-resistive Nd0.7Sr0.3((Mn1-xFex)- Fe-57)O-3 (x = 0.02, 0.05, 0.10, and 0.15) has been studied by Mossbauer sp ectroscopy in magnetic fields up to 68 kG. Fe-57 ions appear to spread over two different magnetic phases. One of them remains ferromagnetic for all v alues of x, but the other one changes from canted to antiferromagnetic with increasing x. For x = 0.02 and 0.05, the latter magnetic phase is comprise d of small clusters, which are very sensitive temperature and strongly infl uenced by the applied fields. (C) 2001 Published by Elsevier Science B.V.