Abstract We found that the nitrogen atoms can enter into the R2Fe14B structure by a proper heat treatment in nitrogen atmosphere. The crystallographic structure and magnetic properties of R2Fe14BNx, R =Nd and Y, have been investigated by using X-ray and neutron diffraction techniques as well as magnetic measurements. The neutron diffrac-tion data show that the nitrogen atoms occupy the 4f interstices. The interstitial nitrogen atoms were found to have an effect of enhancing Curie temerature, whereas, decreasing saturation magnetization and magneto-crystalline anisotropy. The rela-tionship of the crystal structure and the intrinsic magnetic properties of this crystal is discussed.
Received: 06 April 1992
Revised: 28 December 1992
Accepted manuscript online:
(Magnetization curves, hysteresis, Barkhausen and related effects)
Fund: Project Supported by the National Natural Science Foundation of China, the Doctoral Program Foundation of Institution of Higher Education and the State Key Laboratory of Magnetism, Institute of Physics, Academia Sinica.
Cite this article:
ZHANG XIAO-DONG (张晓东), PAN QI (潘琪), DONG SHENG-ZHI (董生智), GE SEN-LIN (葛森林), YANG YING-CHANG (杨应昌), YANG JI-LIAN (杨继廉), ZHANG BAI-SHENG (张百生), DING YONG-FAN (丁永凡), YE CHUN-TANG (叶春堂) CRYSTALLOGRAPHIC STRUCTURE AND INTRINSIC MAGENTIC PROPERTIES OF R2Fe14BNx 1993 Acta Physica Sinica (Overseas Edition) 2 537
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