Spin Seebeck effect in polycrystalline yttrium iron garnet pellets prepared by the solid-state methodG. Venkat, T. A. Rose, C. D. W. Cox, G. B. G. Stenning, A. J. Caruana and K. MorrisonEPL, 126 3 (2019) 37001DOI: https://doi.org/10.1209/0295-5075/126/37001