Laser-Induced Ultrafast Spin Current Pulses: A Thermodynamic Approach
JOURNAL OF PHYSICS-CONDENSED MATTER(2017)
摘要
The ultrafast demagnetization process allows for the generation of femtosecond spin current pulses. Here, we present a thermodynamic model of the spin current generation process, based on the chemical potential gradients as the driving force for the spin current. We demonstrate that the laser-induced spin current can be estimated by an easy to understand diffusion model.
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关键词
ultrafast transport, spin dynamics, spin injection, spintronics
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