Abstract
"Spin pumping" is the injection of spin angular momentum by a time-dependent magnetization into an adjacent normal metal proportional to the spin mixing conductance. We study the role of electrostatic interactions in the form of crystal fields on the pumped spin currents generated by insulators with exchange-coupled local moments at the interface to a metal. The crystal field is shown to render the spin currents anisotropic, which implies that the spin mixing conductance of insulator
Original language | English |
---|---|
Article number | 144434 |
Journal | Physical Review B |
Volume | 96 |
Issue number | 14 |
DOIs | |
Publication status | Published - 2017 |
Keywords
- exchange interaction
- spin pumping
- spin tronics
- crystal field theory
- free-electron model
- linear response theory