中国物理B ›› 1996, Vol. 5 ›› Issue (7): 544-551.doi: 10.1088/1004-423X/5/7/009

• • 上一篇    

FORMATION AND MAGNETIC PROPERTIES OF A NOVEL Gd3(Fe,Ti)29Ny NITRIDE

胡伯平1, 王亦忠1, 李宏硕2, J. M. CADOGAN2, B. NASUNJILEGAL3, 杨伏明3, 朱建军3, 潘华勇3, 王建立3, 秦卫东3, 唐宁3   

  1. (1)San Huan Research Laboratory, Academia Sinica, Beijing 100080, China; (2)School of Physics, University of New South Wales, Kensington, Australia, 2033; (3)State Key Laboratory for Magnetism, Institute of Physics. Academia Sinica. Beijing 100080, China
  • 收稿日期:1995-07-04 出版日期:1996-07-20 发布日期:1996-07-20
  • 基金资助:
    Project supported in part by the National Natural Science Foundation of China.

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   

  1. 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
  • Received:1995-07-04 Online:1996-07-20 Published:1996-07-20
  • Supported by:
    Project supported in part by the National Natural Science Foundation of China.

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摘要： 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 σs 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.

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.

中图分类号:  (Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))

  • 75.30.Kz
61.50.Ah (Theory of crystal structure, crystal symmetry; calculations and modeling) 75.50.Gg (Ferrimagnetics) 75.60.Ej (Magnetization curves, hysteresis, Barkhausen and related effects) 75.30.Gw (Magnetic anisotropy) 81.20.-n (Methods of materials synthesis and materials processing)