Studies on the compounds in the BaFeS system. I. Linear chain antiferromagnetism of Ba2FeS3 and related compounds Ba2CoS3 and Ba2MnS3 |
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Authors: | N. Nakayama K. Kosuge S. Kachi T. Shinjo T. Takada |
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Affiliation: | Department of Chemistry, Faculty of Science, Kyoto University, Kyoto 606, Japan;Institute for Chemical Research, Kyoto University, Uji Kyoto-fu, Japan |
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Abstract: | Magnetic susceptibilities of Ba2FeS3, Ba2CoS3, and Ba2MnS3 show rounded maxima at 130, 125, and 100 K, respectively, which are due to quasi-one-dimensional antiferromagnetic short-range ordering. Intrachain interactions, , are estimated to be ?20, ?15, and ?12 K, respectively. 57Fe Mössbauer spectra of Ba2FeS3 and 57Fe-doped Ba2CoS3 and Ba2MnS3 at 4.2 K show long-range antiferromagnetic ordering, due to the interchain interaction. The profile of Mössbauer spectra at 4.2 K is analyzed based on the coexistence of magnetic hyperfine and quadrupole interactions, and magnetic hyperfine fields at 4.2 K are estimated to be 36, 29, and 59 kOe, respectively. |
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Keywords: | To whom correspondence should be addressed. |
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