Investigation of the crystal field scheme of the first spinel spin ice CdEr2Se4
CdEr2Se4 was recently proposed to be the first spinel that possesses a spin ice state. Although specific heat and susceptibility measurements support this picture, till now no microscopic evidence has been provided. Here we propose to use inelastic neutron scattering to investigate the crystal field transitions in CdEr2Se4. Our experiment will verify the Ising character of Er3+ spins, which is crucial for spin ice behavior. Additionally we will measure quasielastic scattering, to develop understanding of possible spin relaxation mechanisms relevant to the hopping of emergent magnetic monopoles at low temperature (if such things exist in CdEr2Se4).
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Zaharko; FAK Bjorn; FENNELL Tom; GAO shang; LAGO Jorge; RUEEGG Christian; RUMINY Martin and TSURKAN Vladimir. (2014). Investigation of the crystal field scheme of the first spinel spin ice CdEr2Se4. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-01-1378
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