FORMATION AND MAGNETIC PROPERTIES OF A NOVEL Gd3(Fe,Ti)29Ny NITRIDE
B. NASUNJILEGALa, YANG FU-MING (杨伏明)a, ZHU JIAN-JUN (朱建军)a, PAN HUA-YONG (潘华勇)a, WANG JIAN-LI (王建立)a, QIN WEI-DONG (秦卫东)a, TANG NING (唐宁)a, HU BO-PING (胡伯平)b, WANG YI-ZHONG (王亦忠)b, LI HONG-SHUO (李宏硕)c, J. M. CADOGANc
a State Key Laboratory for Magnetism, Institute of Physics. Academia Sinica. Beijing 100080, China; b San Huan Research Laboratory, Academia Sinica, Beijing 100080, China; c School of Physics, University of New South Wales, Kensington, Australia, 2033
Abstract The novel Gd3(Fe0.978Ti0.022)29 compounds and their nitride have been synthesized. The X-ray diffraction patterns of the Gd3(Fe,Ti)29Ny and its parent compounds were indexed in the Nd3(Fe,Ti)29-type structure with a monoclinic symmetry and space group P21/c, Both the nitride and the parent compounds exhibit ferrimagnetlc coupling. Nitrogenatio led to an increase in Curie temperature and saturation magnetization. The Curie temperatures are 517K for the parent and 765K for the nitride. The saturation magnetizations $\sigma$s at 4.2K are 101.9A·m2/kg for the parent and 128A·m2/kg for the nitride. Both the nitride and parent exhibit a planar anisotropy. Nitrogenation led to a decrease of the contribution of Fe-sublattice to planar anisotropy. The anisotropy fields at 4.2K are 9.8T for the parent and 6.5 T for the nitride.
Received: 04 July 1995
Accepted manuscript online:
PACS:
75.30.Kz
(Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))
(Methods of materials synthesis and materials processing)
Fund: Project supported in part by the National Natural Science Foundation of China.
Cite this article:
B. NASUNJILEGAL, YANG FU-MING (杨伏明), ZHU JIAN-JUN (朱建军), PAN HUA-YONG (潘华勇), WANG JIAN-LI (王建立), QIN WEI-DONG (秦卫东), TANG NING (唐宁), HU BO-PING (胡伯平), WANG YI-ZHONG (王亦忠), LI HONG-SHUO (李宏硕), J. M. CADOGAN, FORMATION AND MAGNETIC PROPERTIES OF A NOVEL Gd3(Fe,Ti)29Ny NITRIDE 1996 Acta Physica Sinica (Overseas Edition) 5 544
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