Magnetic Excitations in an Ordered Ferromagnetic Alloy Fe_3Pt
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概要
- 論文の詳細を見る
Magnetic excitations in an ordered ferromagnetic alloy of Fe7gPt.. have beenstudied by neutron scattering. Magnetic dispersion relations have bacon measuredin the [001], [1103 and [111] directions. The dispersion curve attained to the zoneboundary in [0014, while in other tvzo directions, well defined magnon ggroups couldbe detected up to 80 meV. The dispersions still have steep slopes, sugggesting thatmagnon energies at zone boundaries would be quite high. The resul1.s have beenanalyzed in terms of the spin wave theory of the four sublattice Heisenberg system,which indicates that any solutions for fitting the observed dispersiomxs could notexplain consistently the whole experimental data. An anomalous darnping of themagnons in the [001] direction was detected at high temperatures.
- 社団法人日本物理学会の論文
- 1980-04-15
著者
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Tajima Keisuke
Physics Department Tohoku University
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Tajima Keisuke
Physics Department And Institute For Iron Steel And Other Metals Tohoku University
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Noda Yasuhisa
Sendai College Of Radio Tdechnology
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Ishikawa Yoshikazu
Physics Department And Institute For Iron Steel And Other Metals Tohoku University
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Wakabayashi Nobuyoshi
Oak Ridge National Laboratory
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