Investiging the Magnon Contribution to the Spin Seebeck Effect in Rare Earth Iron Garnets by Polarised Inelastic Neutron Scattering
We have been investigating the magnon contribution to the Spin Seebeck Effect measured in Tb3Fe5O12 at IN20 and IN12. The experiments are enabling us to construct temperature dependent Spin-W calculations of the magnons, which we want to map onto the thermal evolution of the SSE measurted in these systems. The aim of this proposal is to measure more of both low energy acoustic magnons and higher energy optical magnons to provide a better Spin-W model of the Temperature dependence of the magnons in this material. Currently the model lacks good agreement in both the high energy and low energy magnon regimes. We will also extenst these measurement to include Dy3Fe5O12 to provide a better overview of the SSE in the rare-earth iron garnets. We request 7 days in triple axis mode with polarisation analysis on IN20 for this experiment
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Geprägs; ENDERLE Mechthild; HANSEN Ursula Bengaard and MANNIX Daniel. (2021). Investiging the Magnon Contribution to the Spin Seebeck Effect in Rare Earth Iron Garnets by Polarised Inelastic Neutron Scattering. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-01-1671
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