Magnetic structure of KFeS2 — A linear chain antiferromagnet and a spin analog of active sites of two iron ferredoxins — By neutron diffraction |
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Authors: | M Nishi Y Ito |
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Institution: | Institute for Solid State Physics, The University of Tokyo, Roppongi, Tokyo, 106, Japan |
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Abstract: | Magnetic structure of KFeS2 — a spin analog of the oxidized two iron ferredoxins — was determined by the neutron diffraction method. Spins are antiferromagnetically coupled along the c-axis chain, and they make ferromagnetic sheets in the planes containing a and b axes below the transition temperature of 250.0 ± 0.5 K. The iron moment of 2.43 ± 0.03 μB lies in the a?c plane and is canted by 125.3 ± 0.7 degrees from a-axis at 4.2 K. |
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