The Final Chapter In The Saga Of YIG

@article{Princep2017TheFC,
  title={The Final Chapter In The Saga Of YIG},
  author={A. Princep and R. Ewings and S. Ward and S. T'oth and C. Dubs and D. Prabhakaran and A. Boothroyd},
  journal={arXiv: Strongly Correlated Electrons},
  year={2017}
}
The magnetic insulator Yttrium Iron Garnet can be grown with exceptional quality, has a ferrimagnetic transition temperature of nearly 600 K, and is used in microwave and spintronic devices that can operate at room temperature. The most accurate prior measurements of the magnon spectrum date back nearly 40 years, but cover only 3 of the lowest energy modes out of 20 distinct magnon branches. Here we have used time-of-flight inelastic neutron scattering to measure the full magnon spectrum… Expand

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References

SHOWING 1-10 OF 31 REFERENCES
Magnon thermal mean free path in yttrium iron garnet
The magnetothermal properties of monocrystalline yttrium iron garnet (YIG) are reported. The magnon contribution to both the thermal conductivity and specific heat at low temperatures has beenExpand
Thermal Spin Dynamics of Yttrium Iron Garnet.
TLDR
The method of atomistic spin dynamics is used to study the temperature evolution of the full spin wave spectrum, in quantitative agreement with neutron scattering experiments, and the antiferromagnetic or optical mode is found to suppress the spin Seebeck effect at room temperature and beyond due to thermally pumped spin currents with opposite polarization to the ferromagnetic mode. Expand
The saga of YIG: Spectra, thermodynamics, interaction and relaxation of magnons in a complex magnet
Abstract A review of magnon properties of yttrium-iron garnet (YIG), a classical object for experimental studies in magnetism, is presented. Both experimental and theoretical results concerned withExpand
Observation of the spin Peltier effect for magnetic insulators.
We report the observation of the spin Peltier effect (SPE) in the ferrimagnetic insulator yttrium iron garnet (YIG), i.e., a heat current generated by a spin current flowing through a platinumExpand
First-principles study of exchange interactions of yttrium iron garnet
Yttrium iron garnet is the ubiquitous magnetic insulator used for studying pure spin currents. The exchange constants reported in the literature vary considerably between different experiments andExpand
Spinwave dispersion curves for yttrium iron garnet
A number of excitation branches have been measured by neutron triple-axis spectrometry techniques for Y3Fe5O12 below its Curie-Neel temperature 560K. A steep optic branch falls steadily withExpand
Cavity quantum electrodynamics with ferromagnetic magnons in a small yttrium-iron-garnet sphere
Hybridizing collective spin excitations and a cavity with high cooperativity provides a new research subject in the field of cavity quantum electrodynamics and can also have potential applications toExpand
Long-range pure magnon spin diffusion observed in a nonlocal spin-Seebeck geometry
The spin diffusion length for thermally excited magnon spins is measured by utilizing a non-local spin-Seebeck effect measurement. In a bulk single crystal of yttrium iron garnet (YIG) a focusedExpand
True magnetic structure of the ferrimagnetic garnet Y3Fe5O12 and magnetic moments of iron ions
Abstract To examine and emphasize the difference between approximative and true magnetic structure, we choose ferrimagnetic garnet Y3Fe5O12 whose magnetic properties are well known. In order to studyExpand
'Pseudo-acoustic' magnon dispersion in yttrium iron garnet
Neutron spectroscopy measurements have confirmed an earlier intimation of an 'anomalous' anisotropy in the dispersion of 'acoustic magnon like' excitations in yttrium iron garnet Y3Fe5O12. TheExpand
...
1
2
3
4
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