Magnetic Bloch Oscillations and domain wall dynamics in a near-Ising ferromagnetic chain
The possible existence of Magnetic Bloch Oscillations (MBOs) in the near-Ising ferromagnetic chain CoCl2*2D2O have since a long time been discussed from a theoretical point of view, however no real experimental proof have been found to this day. Combining new analytical calculations, simulations based on the random phase approximation and recent results from the MACS neutron scattering spectrometer, we have obtained evidence for a field dependent signal that we believe is to be caused by MBOs. However, the experimental configuration chosen at MACS limited the accessible energy transfer range, which in turn limited the field range over which we could probe the MBO signal. Here we propose an experiment at Thales, to study the magnetic excitations in CoCl2*2D2O between 0-3 meV at 22 K as a function of magnetic field, in order to finalise our study of Magnetic Bloch Oscillations.
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HANSEN Ursula Bengaard; BOEHM Martin; N. B. Christensen and LEFMANN Kim. (2020). Magnetic Bloch Oscillations and domain wall dynamics in a near-Ising ferromagnetic chain. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-04-500
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