DocumentCode
1262548
Title
Anisotropic hyperfine field fluctuation in La0.67Ca0.33Mn0.99Fe0.01O 3
Author
Kim, Chul Sung ; Park, Seung-Iel ; Sur, Jung Chul ; Lee, Bo Wha
Author_Institution
Dept. of Phys., Kookmin Univ., Seoul, South Korea
Volume
35
Issue
5
fYear
1999
fDate
9/1/1999 12:00:00 AM
Firstpage
2868
Lastpage
2870
Abstract
Colossal magnetoresistance (CMR), Mossbauer spectra and neutron diffraction of the iron-doped manganite, La0.67Ca0.33 Mn0.9957Fe0.01O3, have been studied. The crystal structure is found to be cubic perovskite with the lattice parameter a0=3.868 Å. It is notable that the Curie temperature, TC=270 K, line broadening and 1,6 and 3,4 linewidth difference appear to suggest anisotropic hyperfine field fluctuation. The temperature dependence of the effective anisotropy energy is also found to decrease rapidly with increasing temperature
Keywords
Curie temperature; Mossbauer effect; calcium compounds; colossal magnetoresistance; crystal structure; hyperfine interactions; lanthanum compounds; magnetic anisotropy; neutron diffraction; Curie temperature; La0.67Ca0.33Mn0.99Fe0.01 O3; Mossbauer spectra; anisotropic hyperfine field fluctuation; colossal magnetoresistance; crystal structure; cubic perovskite; effective anisotropy energy; lattice parameter; neutron diffraction; temperature dependence; Anisotropic magnetoresistance; Diffraction; Fluctuations; Frequency; Iron; Magnetic anisotropy; Neutrons; Perpendicular magnetic anisotropy; Powders; Temperature;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.801008
Filename
801008
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