Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 272, Issue -, Pages 536-538Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2003.12.181
Keywords
INVAR; non-collinear; ferromagnetism polarized neutron
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Neutron scattering experiments with polarization analysis have been made on an FCC-FeNi INVAR alloy using the IN20 spectrometer at the Institut Laue-Langevin (I.L.L.), Grenoble. The magnitudes of the spin-flip cross sections and their constancy with temperature and magnetic field, over the measured Q range, mean that the magnetic moments must be collinear on atomic length scales. However, comparison with results from earlier, similar experiments on the D5 instrument at the I.L.L. suggest that non-collinear structures may exist over longer length scales. (C) 2004 Elsevier B.V. All rights reserved.
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