Neutron scattering study of spin waves in an antiferromagnet FePt3 |
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Authors: | M. Kohgi Y. Ishikawa P. Radhakrishna |
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Affiliation: | Physics Department, Tohoku University, Sendai, 980, Japan;Institut Laue-Langevin, 156X Centre de Tri, 38042 Grenoble, France |
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Abstract: | Spin wave dispersion relations in an antiferromagnetic ordered alloy of FePt3 were determined along three crystallographical axes by neutron scattering. Well defined magnon groups could be observed up to the magnetic zone boundary. The dispersion relation could be interpreted in terms of the Heisenberg model using more than four exchange parameters. |
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