| Institution: | 1. Departamento de Física, Universidad de Oviedo, Calvo Sotelo, s/n, 33007 Oviedo, Spain;2. ICMA and Departamento de Física de la Materia Condensada, CSIC – Universidad de Zaragoza, 50009 Zaragoza, Spain;3. LGIT, University of Grenoble and CNRS, Maison des Geosciences, B.P. 53, 38041 Grenoble cedex 9, France;4. Institut Laue‐Langevin, B.P. 156, 6 rue Jules Horowitz, 38042 Grenoble cedex 9, France;5. European Synchrotron Radiation Facility (ESRF), B.P. 220, 6 Rue Jules Horowitz, 38043 Grenoble cedex, France;6. ISIS Facility, RAL, Chilton, Didcot, Oxon OX11 0QX, UK;7. Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006 Oviedo, Spain;8. Instituto de Magnetismo Aplicado, UCM‐ADIF‐CSIC, P.O. Box 155, Las Rozas, 28230 Madrid, Spain |
| Abstract: | Structural and magnetic changes on invar Fe64Ni36 alloy (TC = 500 K) produced by mechanical milling followed by heating up to 1073 K, were investigated by neutron diffraction, magnetization measurements, X‐ray diffraction under high pressures and X‐ray absorption at both Fe and Ni K‐edges. We argue that the strain induced in the Fe64Ni36 material after this treatment mainly affects the Fe sites due to the magnetovolume coupling, the most notorious feature being the increase of the Curie temperature (ΔTC = 70 K). (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |
