The magnon dispersion in single crystals of NiPS3
NiPS3 is a quasi-2D antiferromagnet with a honeycomb lattice. We have previously attempted to estimate the magnetic exchange interactions from neutron inelastic spectrometry measurements on a powdered sample. The analysis required a number of assumptions and the results were somewhat ambiguous. We now wish to perform more precise measurements on single crystals. Our first aim is to measure the interplanar exchange to determine how close NiPS3 is to a true 2D magnet. We will then measure the in-plane magnon dispersion to verify the magnon dispersion and the magnetic Hamiltonian.
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WILDES Andrew; ANAND Ketan and TESTA Luc. (2019). The magnon dispersion in single crystals of NiPS3. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-01-1608
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