Investigation of the dispersive character of the Fincher-Burke modes in antiferromagnetic Chromium
The nature of the low-energy excitation spectrum of antiferromagnetic chromium is still not understood. In particular, the dispersive character of the so-called Fincher-Burke modes, which only occur in the transversely polarized spin wave state is unclear, with recent investigations finding asymmetries in the magnetic scattering cross section that would indicate a collection of local modes, rather than a dispersive excitation. We propose a high-resolution inelastic neutron scattering study of the low-energy excitations in order to prove or disprove the dispersive character of the FB modes.
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BRANDL Georg; BOENI Peter; GEORGII Robert; GRUENWALD Alexander and SCHMIDT Wolfgang F. (2012). Investigation of the dispersive character of the Fincher-Burke modes in antiferromagnetic Chromium. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-01-1114
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