Nuclear Science and Techniques ›› 1992, Vol. 3 ›› Issue (2):
Yang Xielong (杨燮龙) Jiang Keyu (蒋可玉) Weng Sihao (翁斯灏), Hu Bingyuan (胡炳元), Zhang Fugong (张敷功), Wu Zheng (吴 正)
A Missbauer polarimeter consists of a gamma ray source (polarizer)，transmitter (sample to be analyzed)，analyzer and automatic counting system. This equipment was used to observe the Mssbauer Faraday effect in non- stoichiometric FesO4 Experimental results demonstrated that electronic hopping above the Verwey temperature between Fe2+- Fe3+ ions on the octahedral sites is a only localized phenomenon and the recoilless fractions of Fe nuclei in Fe3-vO4 (v=0.02) are 0.71 for A sites and 0.62 for B sites, respectively.
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