Key points are not available for this paper at this time.
The longitudinal spin Seebeck effect (LSSE) is investigated in various garnet ferrites Y₃-ₗRₗFe₅-ₘMₘO₁₂ (R=Gd, Ca; M=Al, Mn, V, In, Zr) by means of the inverse spin Hall effect in Pt films. The magnitude of the LSSE voltage in the Pt/Y₃-ₗRₗFe₅-ₘMₘO₁₂ samples is found to be enhanced with increasing concentration of Fe in the garnet ferrites, which can be explained by a change in the spin-mixing conductance at the Pt/Y₃-ₗRₗFe₅-ₘMₘO₁₂ interfaces. We also investigate the dependence of the LSSE voltage on macroscopic magnetic parameters of Y₃-ₗRₗFe₅-ₘMₘO₁₂. The experimental results show that the LSSE voltage in the Pt/Y₃-ₗRₗFe₅-ₘMₘO₁₂ samples has a positive correlation with the Curie temperature and the saturation magnetization, but no clear correlation with the gyromagnetic ratio and the Gilbert damping constant of the samples.
Uchida et al. (Fri,) studied this question.