Abstract
Sharp structures in the magnetic field-dependent spin Seebeck effect (SSE) voltages of Pt/Y3Fe5O12 at low temperatures are attributed to the magnon-phonon interaction. Experimental results are well reproduced by a Boltzmann theory that includes magnetoelastic coupling. The SSE anomalies coincide with magnetic fields tuned to the threshold of magnon-polaron formation. The effect gives insight into the relative quality of the lattice and magnetization dynamics.
Original language | English |
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Article number | 207203 |
Journal | Physical Review Letters |
Volume | 117 |
Issue number | 20 |
DOIs | |
Publication status | Published - 10 Nov 2016 |