Neutron spin-wave scattering from a Heusler alloy Pd2MnSn |
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Authors: | Y. Ishikawa Y. Noda |
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Affiliation: | Physics Department, Tohoku University, Sendai, Japan |
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Abstract: | Spin-wave dispersion relations have been determined in three principal symmetry directions for Heusler-type alloy Pd2MnSn. Analysis shows that the exchange parameters at large distances have an oscillatory character which can be interpreted in terms of the s-d interaction model. However the n.n and n.n.n. interactions have the opposite sign to that expected from the model and should be attributed to other mechanisms. |
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