Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 1992, Vol. 3 ›› Issue (2): 135

Previous Articles     Next Articles

STUDY ON Fe ION DISTRIBUTION IN NATURAL CHROMITE BY MÖSSBAUER TECHNIQUE

Chen Yilong (陈义龙)1, Xu Binfu (徐斌富)1, Cheng Jigao (程寄振)2, Ge Yingya (葛英雅)3   

  1. 1 Wuhan University, Wuhan 430072, China;
    2 Wuhan Iron and Steel University, Wuhon 430080, China;
    3 China University of Geoseiences, Wuhan 430074, China
PDF ShareIt Export Citation
Chen Yilong (陈义龙), Xu Binfu (徐斌富), Cheng Jigao (程寄振), Ge Yingya (葛英雅). STUDY ON Fe ION DISTRIBUTION IN NATURAL CHROMITE BY MÖSSBAUER TECHNIQUE.Nuclear Science and Techniques, 1992, 3(2): 135

Abstract: Mössbauer absorption spectra in a natural chromite from Shanxi province of China were measured, covering a temperature range from 12K to 800K. Each spectrum at low temperature can be fitted to three doublets: the first two are attributed to tetrahedral T-site Fe ions and the third one to octahedral M-site Fe ions. Such assignment was confirmed by the detailed analyses of the temperature dependent centre shift and other parameters. As a main result, our data strongly supported the ordered distribution with Fe2+ in T-site and Fe3+ in M-site for chromite studied. No evidence for electron hopping processes was detected.

Key words: M?ssbauer spectroscopy, Chromite, Next nearest neighbour