Magnetic excitations in the topological f-electron magnet CeAgBi2
Recently, the first f-electron skyrmions were reported to emerge in a row of Gd-based bulk materials including Gd2PdSi3. Yet, an account of the underlying mechanism remained to date elusive. Neutron spectroscopy, a technique that typically qualifies for the study of the underlying interactions, is prevented in these materials due to the large neutron absorption of Gd. The tetragonal f-electron magnet CeAgBi2 is a another promising candidate material to host skyrmions and it represents further an ideal platform for experiments with neutrons. Namely, our recent neutron diffraction study suggests the emergence of a skyrmion lattice phase. In addition, our collaborators observed in the same phase a strong topological Hall effect. Yet, our diffraction study is not yet conclusive, as it suffers ambiguities due to the formation of magnetic domains. With this proposal, we will remove these ambiguities in order to obtain conclusive evidence. We will therefore perform neutron spectroscopy and measure magnon dispersions. In turn, we will determine the mechanism that underlies the putative skyrmion lattice phase in CeAgBi2. For this quest, we request beamtime either at IN5 or Thales.
The data is currently only available to download if you are a member of the proposal team.
The recommended format for citing this dataset in a research publication is in the following format:
SIMETH Wolfgang; BOENI Peter; FLURY Simon; JANOSCHEK Marc; RAYMOND Stephane; SCHMALZL Karin and SCHMIDT Wolfgang F. (2021). Magnetic excitations in the topological f-electron magnet CeAgBi2. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.CRG-2884
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This data is not yet public
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