Abstract
Mössbauer study has been performed on57Fe in a single crystal of YbFe2O4 in order to obtain the information about the magnetic ordering. The essential difference between zerofield-cooling- and field-cooling- spectra has been decisive for settling the problem. A model of Ising spin system in 2d-antiferromagnet on the triangular lattice is proposed to interpret the spin behavior of Fe3+ in this system. It is very different from ordinary antiferromagnets that the microscopic change of 3d-state is induced by the external magnetic field even at low enough temperatures.
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Tanaka, M., Iwasaki, H. & Siratori, K. Magnetic ordering of two dimensional antiferromagnets on the triangular lattice: Mössbauer study. Hyperfine Interact 41, 455–458 (1988). https://doi.org/10.1007/BF02400426
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DOI: https://doi.org/10.1007/BF02400426