中国物理B ›› 1994, Vol. 3 ›› Issue (10): 764-768.doi: 10.1088/1004-423X/3/10/006

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A NEUTRON POWDER DIFFRACTION STUDY OF THE STRUCTURE IN Nd2Fe17Nx(x = 2.5, 3.0, 5.5)

勾成1, 程玉芬1, 陈东风1, 胡伯平2, 王亦忠2, 刘贵川2, 严启伟3, 张泮霖3, 孙向东3, 魏玉年3, 孙克3   

  1. (1)China Institute of Atomic Energy, Beijing 102413, China; (2)Sanhuan Research Laboratory, Academia Sinica, Beijing 100080, China; (3)State Key Laboratory of Magnetism, Institute Physics, Academia Sinica, Beijing 100080, China
  • 收稿日期:1993-11-12 出版日期:1994-10-20 发布日期:1994-10-20

A NEUTRON POWDER DIFFRACTION STUDY OF THE STRUCTURE IN Nd2Fe17Nx(x = 2.5, 3.0, 5.5)

YAN QI-WEI (严启伟)a, ZHANG PAN-LIN (张泮霖)a, SUN XIANG-DONG (孙向东)a, WEI YU-NIAN (魏玉年)a, SUN KE (孙克)a, HU BO-PING (胡伯平)b, WANG YI-ZHONG (王亦忠)b, LIU GUI-CHUAN (刘贵川)b, GOU CHENG (勾成)c, CHENC YU-FEN (程玉芬)c, CHEN DONG-FENG (陈东风)c   

  1. a State Key Laboratory of Magnetism, Institute Physics, Academia Sinica, Beijing 100080, China; b Sanhuan Research Laboratory, Academia Sinica, Beijing 100080, China; c China Institute of Atomic Energy, Beijing 102413, China
  • Received:1993-11-12 Online:1994-10-20 Published:1994-10-20

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摘要： The crystallographic and magnetic structures of Nd2Fe17Nx(x = 2.5, 3.0, 5.5) at room temperature were refined by Rietveld analysis of neutron powder diffraction data. We found that Nd2Fe17Nx has a Th2Zn17 type structure (S.G. R3m) and the nitrogen atoms occupy both 9e and 18g sites simultaneously and at different rates.

Abstract: The crystallographic and magnetic structures of Nd2Fe17Nx(x = 2.5, 3.0, 5.5) at room temperature were refined by Rietveld analysis of neutron powder diffraction data. We found that Nd2Fe17Nx has a Th2Zn17 type structure (S.G. R3m) and the nitrogen atoms occupy both 9e and 18g sites simultaneously and at different rates.

中图分类号: 

  • 75.25.+z
61.05.fm (Neutron diffraction) 75.30.Cr (Saturation moments and magnetic susceptibilities) 61.50.Ah (Theory of crystal structure, crystal symmetry; calculations and modeling) 61.66.Fn (Inorganic compounds)