Anisotropic hyperfine field fluctuation in La0.67Ca0.33Mn0.99Fe0.01O3

Authors
Kim, CS Park, SI Sur, JC Lee, BW
Citation
Cs. Kim et al., Anisotropic hyperfine field fluctuation in La0.67Ca0.33Mn0.99Fe0.01O3, IEEE MAGNET, 35(5), 1999, pp. 2868-2870
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
35
Issue
5
Year of publication
1999
Part
1
Pages
2868 - 2870
Database
ISI
SICI code
0018-9464(199909)35:5<2868:AHFFIL>2.0.ZU;2-E
Abstract
Colossal magnetoresistance(CMR), Mossbauer spectra, and neutron diffraction of the iron-doped manganite, (La0.67Ca0.33Mn0.99Fe0.01O3)-Fe-57 have been studied. The crystal structure is found to be cubic perovskite with the lat tice parameter a(0) = 3.868 Angstrom. It is notable that the Curie temperat ure, T-C = 270 K, line broadening and 1,6 and 3,4 line-width difference app ear to suggest anisotropic hyperfine field fluctuation. The temperature dep endence of the effective anisotropy energy is also found to decrease rapidl y with increasing temperature.