Research Papers in Physics and Astronomy

 

Date of this Version

November 1993

Comments

Published by IEEE; IEEE Trans. Magn. 29, 2839 (1993). ©1993 IEEE. Permission to use. http://ieeexplore.ieee.org/

Abstract

LaFe13-xSix compounds were found to have two types of crystal structure; the face-centered cubic Na13--type (x ≤2.4) and the body-centered tetragonal Ce2Ni17Si9-type (3.5≤x≤5.0). Nitrogenation has a strong effect on the cubic phase, including a large lattice expansion (6.2 to 10.8 %), an increase of Curie temperature (52 to 80 K) and spontaneous magnetization ( ~10 %). The tetragonal phase, however, was not significantly affected by the nitrogenation.

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