May, 2020
Spin pumping into a spin glass material
PHYSICAL REVIEW B
- ,
- ,
- Volume
- 101
- Number
- 18
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1103/PhysRevB.101.184412
- Publisher
- AMER PHYSICAL SOC
Spin pumping is a recently established means for generating a pure spin current, whereby spins are pumped from a magnet into the adjacent target material under the ferromagnetic resonance condition. We theoretically investigate the spin pumping from an insulating ferromagnet into spin glass materials. Combining a dynamic theory of spin glasses with the linear-response formulation of the spin pumping, we calculate temperature dependence of the spin pumping near the spin glass transition. The analysis predicts that a characteristic peak appears in the spin pumping signal, reflecting that the spin fluctuations slow down upon the onset of spin freezing.
- Link information
- ID information
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- DOI : 10.1103/PhysRevB.101.184412
- ISSN : 2469-9950
- eISSN : 2469-9969
- Web of Science ID : WOS:000531445800008