Determination of the magnetic excitations in the charge density wave compound TbTe3 by inelastic neutron scattering
The interest of this proposal lies in the observation of an interaction between the ordered magnetic moments and the CDW manifested by the appearance of smaller magnetic peaks indexed as ½-qCDW along the modulation direction, the c-axis. Despite the small sample size, the magnetic scattering cross section is so large that counting times at the magnetic Bragg peaks are in the order of 1000-5000 c/s in in22 and in ThALES. Similarly, the magnetic excitations can be well observed with relatively low counting times (same reports and Fig. 1). The excitations are composed by a dispersive mode between 3.2 and 4.8 meV and a series of peaks at lower energies. ThALES is the correct instrument for this measurement. The goal of this proposal is to determine the magnetic excitations and the influence of the different magnetic orderings and phase transitions onto the excitation spectra.
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J.E. Lorenzo; BOEHM Martin; LEMEE Marie Helene; MONCEAU Pierre; ORTEGA Luc; RODIERE Pierre and A.A. Sinchenko. (2020). Determination of the magnetic excitations in the charge density wave compound TbTe3 by inelastic neutron scattering. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-01-1670
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