Magneto-elastic coupling in the ¿Faraday-rotator¿ KTb3F10
In recent years, the study of the coupling between the 4f electronic density and lattice degrees of freedom has aroused a lot of attention. Such interactions are suspected to play a key role in a number of issues, ranging from highly frustrated magnetism to the design of smart materials in optics. Preliminary single-crystal neutron diffraction experiments performed on the Faraday rotator KTb3F10 have revealed a decrease of the intensity on several Bragg reflections in a magnetic field up to 2 T, anomaly which can be interpreted as originating from a magneto-elastic coupling. Such a coupling would imply changes in the phonon spectrum, as well as in the crystal electric field energy levels, when a magnetic field is applied. Inelastic neutron scattering is the best tool to access S(Q,E) for both structural and magnetic excitations, and we are therefore requesting beamtime on the thermal spectrometer IN8, whose energy range is ideally suited for this study. Experiments will be carried between 2 and 300 K, for H = 0-6T.
The data is currently only available to download if you are a member of the proposal team.
The recommended format for citing this dataset in a research publication is in the following format:
DEMORTIER OLIVIER; DAMAY Francoise; IVANOV Alexandre and PETIT Sylvain. (2023). Magneto-elastic coupling in the ¿Faraday-rotator¿ KTb3F10. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-04-523
This data is not yet public
This data is not yet public
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