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Title: Effect of Fe substitution in the electronic structure of LaCo{sub 13}

Abstract

Electronic structures of potential permanent magnets La(Co{sub 1{minus}x}Fe{sub x}){sub 13} (x = 0, 0.2) have been investigated using photoemission spectroscopy. The partial spectral weight (PSW) distributions of the La 5d and T 3d (T = Fe, Co) electrons are determined and compared to the calculated angular momentum projected local densities of states (PLDOSs). The extracted La 5d and Co 3d PSWs suggest the hybridization between Co 3d and La 5d states and a weak Co 3d Coulomb interaction in this system. The experimental T 3d PSWs of La(Co{sub 1{minus}x}Fe{sub x}){sub 13} with x = 0 and x = 0.2 are found to be consistent with the predicted changes in PLDOSs with a small substitution of Fe for Co in LaCo{sub 13}, obtained in the virtual crystal approximation.

Authors:
; ; ;
Publication Date:
Research Org.:
Catholic Univ. of Korea, Puchon (KR)
OSTI Identifier:
20000755
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)
Additional Journal Information:
Journal Volume: 35; Journal Issue: 5Pt2; Conference: 1999 international magnetics conference (Intermag '99), Kyongju (KR), 05/18/1999--05/21/1999; Other Information: PBD: Sep 1999; Journal ID: ISSN 0018-9464
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COBALT BASE ALLOYS; LANTHANUM ALLOYS; IRON ADDITIONS; METALLURGICAL EFFECTS; ELECTRONIC STRUCTURE; PERMANENT MAGNETS; CRYSTAL STRUCTURE

Citation Formats

Kang, J.S., Youn, S.J., Kwon, S.K., and Min, B.I. Effect of Fe substitution in the electronic structure of LaCo{sub 13}. United States: N. p., 1999. Web. doi:10.1109/20.800499.
Kang, J.S., Youn, S.J., Kwon, S.K., & Min, B.I. Effect of Fe substitution in the electronic structure of LaCo{sub 13}. United States. doi:10.1109/20.800499.
Kang, J.S., Youn, S.J., Kwon, S.K., and Min, B.I. Wed . "Effect of Fe substitution in the electronic structure of LaCo{sub 13}". United States. doi:10.1109/20.800499.
@article{osti_20000755,
title = {Effect of Fe substitution in the electronic structure of LaCo{sub 13}},
author = {Kang, J.S. and Youn, S.J. and Kwon, S.K. and Min, B.I.},
abstractNote = {Electronic structures of potential permanent magnets La(Co{sub 1{minus}x}Fe{sub x}){sub 13} (x = 0, 0.2) have been investigated using photoemission spectroscopy. The partial spectral weight (PSW) distributions of the La 5d and T 3d (T = Fe, Co) electrons are determined and compared to the calculated angular momentum projected local densities of states (PLDOSs). The extracted La 5d and Co 3d PSWs suggest the hybridization between Co 3d and La 5d states and a weak Co 3d Coulomb interaction in this system. The experimental T 3d PSWs of La(Co{sub 1{minus}x}Fe{sub x}){sub 13} with x = 0 and x = 0.2 are found to be consistent with the predicted changes in PLDOSs with a small substitution of Fe for Co in LaCo{sub 13}, obtained in the virtual crystal approximation.},
doi = {10.1109/20.800499},
journal = {IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)},
issn = {0018-9464},
number = 5Pt2,
volume = 35,
place = {United States},
year = {1999},
month = {9}
}