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Title: Crystallographic and magnetic properties of R{sub 3}Co{sub 11}B{sub 4}(R = Y and Gd) compounds

Abstract

The structure and magnetic properties of R{sub 3}Co{sub 11}B{sub 4} compounds, where R = Y and Gd are investigated. X-ray analysis reveals that the R{sub 3}Co{sub 11}B{sub 4} alloys crystallize in the hexagonal Ce{sub 3}Co{sub 11}B{sub 4} structure. The unit cell of the structure contains 18 atoms. The rare earth atoms are distributed in two different crystallographic sites, the Co atoms in three different positions and B is located in one type of site. The lattice constants, Curie temperature and saturation magnetization at 4.2 K are determined. The mean field approximation yields a 4f-3d exchange integral of J{sub RCo}/k{sub B} = {minus}20.9 K. The properties of these compounds are compared with those of R-Co alloys.

Authors:
;  [1]
  1. Polish Academy of Sciences, Poznan (Poland). Inst. of Molecular Physics
Publication Date:
OSTI Identifier:
37269
Report Number(s):
CONF-930860-
Journal ID: IEMGAQ; ISSN 0018-9464; TRN: IM9519%%193
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Magnetics
Additional Journal Information:
Journal Volume: 30; Journal Issue: 2Pt2; Conference: EMMA `93: 5th European magnetic materials and applications conference, Kosice (Slovakia), 24-27 Aug 1993; Other Information: PBD: Mar 1994
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; YTTRIUM ALLOYS; MAGNETIC PROPERTIES; CRYSTAL STRUCTURE; GADOLINIUM ALLOYS; COBALT BASE ALLOYS; BORON ALLOYS; EXPERIMENTAL DATA

Citation Formats

Kowalczyk, A., and Stefanski, P. Crystallographic and magnetic properties of R{sub 3}Co{sub 11}B{sub 4}(R = Y and Gd) compounds. United States: N. p., 1994. Web. doi:10.1109/20.312364.
Kowalczyk, A., & Stefanski, P. Crystallographic and magnetic properties of R{sub 3}Co{sub 11}B{sub 4}(R = Y and Gd) compounds. United States. doi:10.1109/20.312364.
Kowalczyk, A., and Stefanski, P. Tue . "Crystallographic and magnetic properties of R{sub 3}Co{sub 11}B{sub 4}(R = Y and Gd) compounds". United States. doi:10.1109/20.312364.
@article{osti_37269,
title = {Crystallographic and magnetic properties of R{sub 3}Co{sub 11}B{sub 4}(R = Y and Gd) compounds},
author = {Kowalczyk, A. and Stefanski, P.},
abstractNote = {The structure and magnetic properties of R{sub 3}Co{sub 11}B{sub 4} compounds, where R = Y and Gd are investigated. X-ray analysis reveals that the R{sub 3}Co{sub 11}B{sub 4} alloys crystallize in the hexagonal Ce{sub 3}Co{sub 11}B{sub 4} structure. The unit cell of the structure contains 18 atoms. The rare earth atoms are distributed in two different crystallographic sites, the Co atoms in three different positions and B is located in one type of site. The lattice constants, Curie temperature and saturation magnetization at 4.2 K are determined. The mean field approximation yields a 4f-3d exchange integral of J{sub RCo}/k{sub B} = {minus}20.9 K. The properties of these compounds are compared with those of R-Co alloys.},
doi = {10.1109/20.312364},
journal = {IEEE Transactions on Magnetics},
number = 2Pt2,
volume = 30,
place = {United States},
year = {1994},
month = {3}
}