ISIS Neutron and Muon Source Data Journal

Spin wave dispersion, including possible quantum effect, of Kagome spin ice HoAgGe by inelastic neutron scattering

Abstract: Spin ices are exotic phases of matter characterized by frustrated spins obeying local ice rules, that minimize the number of spatially isolated magnetic monopoles, in analogy with the electric dipoles in water ice. In two dimensions, one can similarly define ice rules for in-plane Ising spins arranged on a kagome lattice, leading to a variety of unique orders and excitations. Based on neutron results, HoAgGe is the first compound to realize classical kagome spin ice state. Clear spin wave excitations appear at 1.5 K on randomly oriented single crystals. The spin wave has a small gap about 0.2 meV, indicating Ising anisotropy in spin Hamiltonian. We plan to conduct inelastic neutron scattering on properly oriented crystals to collect information on exchange coupling strength, and the possible quantum effect with field along c axis, namely perpendicular to the kagome plane of Ho spins.

Principal Investigator: Dr Kan Zhao
Local Contact: Dr Franz Demmel
Experimenter: Professor Hao Deng

DOI: 10.5286/ISIS.E.RB2010100

ISIS Experiment Number: RB2010100

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Kan Zhao et al; (2021): Spin wave dispersion, including possible quantum effect, of Kagome spin ice HoAgGe by inelastic neutron scattering, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2010100

Data is released under the CC-BY-4.0 license.