Neutron scattering study of anisotropic spin correlations in quasi two-dimensional antiferromagnet MnTiO3 |
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| Authors: | Jun Akimitsu Yoshikazu Ishikawa |
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| Institution: | Institute for Solid State Physics, University of Tokyo Roppongi, Minato-ku, Tokyo 106, Japan;Physics Department, Faculty of Science, Tohoku University Sendai 980, Japan |
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| Abstract: | An anisotropic three-dimensional neutron critical scattering has been observed from a “quasi” two-dimensional antiferromagnet MnTiO3 in the vicinity of the Néel temperature. When temperature increases, the scattering profile transforms gradually to a ridge-like form, indicating that “cross-over” from three-dimensional to two-dimensional character appears at about 16 degrees above TN. |
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