The magnetic density of states in NiPS3
NiPS3 belongs to a family of quasi-2D antiferromagnets on a honeycomb lattice. We have previously used neutron spectroscopy to establish that other members of the family are very good model magnets, namely: MnPS3, which is Heisenberg-like; and FePS3, which is Ising-like. NiPS3 shows novel effects in comparison, and we now wish to measure the magnetic density of states from a powder using time-of-flight spectroscopy. We have data from D7 showing a potential spin wave gap at 3 meV, but the measurement suffers badly for lack of flux and energy transfer band width. We now wish to measure on IN4 to establish the presence of the gap and to measure the full spin wave density of states. We would also like to search for a two magnon mode at 65 meV energy transfer.
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WILDES Andrew; FAK Bjorn; HICKS Trevor J; LANCON Diane; ROLS Stephane; Henrik M. Ronnow and RULE Kirrily. (2015). The magnetic density of states in NiPS3. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-01-1446
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