High magnetic fields at the ESRF: Recent progress, first results, and future perspectives
by
Carsten DETLEFS, ESRF, Grenoble
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Europe/Berlin
bldg. 25b, room 109
bldg. 25b, room 109
Description
Pulsed magnetic field systems for use at synchrotron radiation sources have recently been developed at the LNCMP (Toulouse, France) [1] and the ESRF [2]. First results were obtained with powder diffraction, x-ray circular magnetic dichroism (XMCD), and nuclear forward scattering experiments. In particular, we were able to observe the effect of high magnetic fields on the Jahn-Teller distortion in TbVO4 [3].
Pulsed magnetic fields present an economical, scalable way of generating magnetic fields beyond those reachable with superconducting magnets. However, the short pulse duration and low duty cycle intrinsic to this method cannot be combined with many synchrotron techniques, in particular inelastic scattering and non-resonant magnetic scattering. The ESRF and the ILL are therefore pursuing plans for constant (DC) magnetic field facility that will provide fields in excess of 30T to the two institutes [4].
[1] P. Frings et al., Rev. Sci. Instr. 77, 063903 (2006).
[2] P. van der Linden et al., Rev. Sci. Instr. (2008) submitted.
[3] C. Detlefs et al., Phys. Rev. Lett. 100, 056405 (2008).
[4] T. Bouvet, C. Detlefs, E. Mitchell, and J.L. Revol (eds.) The ESRF Science and Technology Programme 2008-2017, Grenoble 2007. The report is available for download from the ESRF Website, http://www.esrf.eu/Upgrade
