ISIS Neutron and Muon Source Data Journal

High precision measurements of the spin wave dispersion in Yttrium Iron Garnet

Abstract: Yttrium Iron Garnet (YIG) is a material with extremely wide ranging applications, having the narrowest ferromagnetic resonance linewidth of any known material. Despite decades of experiments on this material, data relating to its full magnon spectrum is sparse. The spectrum is known to contain 20 branches, but the most thorough work to date relies upon a 3-parameter hamiltonian derived from fitting just 3 (the only 3 that were observed in what is still the only neutron spectroscopic measurement on this material). Increasing interest in YIG for applications in magnonics (the magnon equivalent of electronics) necessitates a direct measurement of the optical magnon modes. Following RB1520403 we have sourced larger, purer crystals and we propose to continue the work we have started and produce the definitive data set on this material along with the most thorough analysis possible.

Principal Investigator: Dr Andrew Princep
Experimenter: Dr Russell Ewings
Experimenter: Dr Alexy Karenowska
Experimenter: Professor Andrew Boothroyd
Experimenter: Dr Viviane Pecanha Antonio
Experimenter: Dr Duc Le

DOI: 10.5286/ISIS.E.RB1610252

ISIS Experiment Number: RB1610252

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 Andrew Princep et al; (2016): High precision measurements of the spin wave dispersion in Yttrium Iron Garnet, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1610252

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