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Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/1061

Title: Inelastic neutron scattering study of Pr2Co12Fe5.
Authors: Magnani, N
Paoluzi, A
Pareti, L
Stride, JA
Keywords: Neutrons
Inelastic Scattering
Intermetallic Compounds
Phonons
Time-Of-Flight Spectrometers
Magnetic Fields
Issue Date: 12-Mar-2008
Publisher: Institute of Physics
Citation: Magnani, N., Paoluzi, A., Pareti, L., & Stride, J. A. (2008). Inelastic neutron scattering study of Pr2Co12Fe5. Journal of Physics-Condensed Matter, 20(10), 104222.
Abstract: Inelastic neutron scattering measurements have been performed on the intermetallic compounds Pr2Co12Fe5 (and Y2Co12Fe5) on the IN4 time-of-flight spectrometer at the Institut Laue-Langevin, Grenoble. The data on the yttrium-based compound have been used to estimate the phonon scattering. A broad peak is detected at 18 meV, whose deduced Q dependence (when only the magnetic contribution is considered) is consistent with the form factor of Pr3+ ions; in the high-Q region, the same peak displays a clear phononic character. The experimental results are analysed by a molecular field model including exchange and crystal-field contributions, and the derived value for the exchange parameter is consistent with the trend inferred by studying Pr2Co17 and Pr2Fe17. A possible mechanism for the generation of the large volume magnetostriction, to be checked by further experiments, is suggested. © 2008, Institute of Physics
URI: http://dx.doi.org/10.1088/0953-8984/20/10/104222
http://apo.ansto.gov.au/dspace/handle/10238/1061
ISSN: 0953-8984
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