4.5 Article Proceedings Paper

Moment instability in Fe65Ni35 and Fe3Pt invar alloys studied with polarised neutrons

Journal

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 242, Issue -, Pages 781-787

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/S0304-8853(01)01065-4

Keywords

invar effect; neutron scattering-polarized; magneto-volume effect

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Polarised neutron diffraction measurements on Fe65Ni35 and Fe3Pt invar alloys show that the shape of the magnetisation distribution remains essentially unchanged in the temperature range 100-600 K. This finding is inconsistent with band models of the invar effect. Investigation of the magneto-vibrational scattering shows a strong coupling of the lattice and magnetic degrees of freedom. (C) 2002 Elsevier Science B.V. All rights reserved.

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