Title: Giant Magnetoelastic Interaction in UFe2
Authors: PAOLASINI LuigiFORMISANO F.CACIUFFO RobertoLANDER G.h.LAPERTOT G.
Citation: JOURNAL OF PHYSICS: CONFERENCE SERIES vol. 340 p. 012063 (1-5)
Publisher: INSTITUTE OF PHYSICS
Publication Year: 2012
JRC N°: JRC65858
ISSN: 1742-6588
URI: http://iopscience.iop.org/1742-6596/340/1/012063
http://publications.jrc.ec.europa.eu/repository/handle/JRC65858
DOI: 10.1088/1742-6596/340/1/012063
Type: Contributions to Conferences
Abstract: Using the unique coverage of (Q, ω) space available on the BRISP spectrometer, we have investigated the low Q dynamical response of a single crystal of UFe2. A strong inelastic signal was found with a dispersion corresponding to the transverse acoustic phonon branch, forbidden in the first Brillouin zone. A detailed analysis of the neutron intensities as a function of temperature and an applied magnetic field reveals a possible magnetic contribution superposed to this signal, which could originate from the magnon-phonon interaction, explaining the anomalous magnetoelastic behavior in this compound.
JRC Institute:Institute for Transuranium Elements

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