期刊
PHYSICAL REVIEW B
卷 87, 期 10, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.87.104412
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资金
- PRESTO-JST Phase Interfaces for Highly Efficient Energy Utilization
- CREST-JST Creation of Nanosystems with Novel Functions through Process Integration
- MEXT, Japan [24860003, 24244051]
- LC-IMR of Tohoku University
- Murata Science Foundation
- Mazda Foundation
- Sumitomo Foundation
- Grants-in-Aid for Scientific Research [24860003] Funding Source: KAKEN
The longitudinal spin Seebeck effect (LSSE) is investigated in various garnet ferrites Y3-xRxFe5-yMyO12 (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-xRxFe5-yMyO12 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-xRxFe5-yMyO12 interfaces. We also investigate the dependence of the LSSE voltage on macroscopic magnetic parameters of Y3-xRxFe5-yMyO12. The experimental results show that the LSSE voltage in the Pt/Y3-xRxFe5-yMyO12 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. DOI: 10.1103/PhysRevB.87.104412
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