Abstract
We have employed inelastic scattering of polarized neutrons to study the nature of the magnetic response in the vicinity of the Curie temperature (T C=493 K) for the intermetallic ferromagnet Pt3Mn. The measurements were taken on the HB-1 triple-axis spectrometer at ORNL, with a field of 10 kOe applied along the scattering vector Q. For 0.9TC <T<1.2TC we observed underdamped magnons not only with the conventional (+) spin-wave polarization but also with the ''forbidden'' (-) polarization, with an intensity difference I(+)-I(-) which is approximately proportional to the magnetization. Both these observations are in agreement with the slowly fluctuating spin-density theory of itinerant ferromagnetism.
Original language | English |
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Pages (from-to) | 3751-3752 |
Number of pages | 2 |
Journal | Journal of Applied Physics |
Volume | 57 |
Issue number | 8 |
DOIs | |
State | Published - 1985 |