论文标题
超导体中的声旋流
Acoustic spin current generation in superconductors
论文作者
论文摘要
从理论上讲，由于超导体中的表面声波（SAW），我们研究了自旋电流的产生。我们将S波超导体建模为平均田野哈密顿量，并根据动力学理论计算通过自旋涡流耦合产生的自旋电流。结果表明，自旋电流可以在单个超导体层中驱动，我们的估计表明，旋转电流的可检测幅度可以在铝中产生。我们的建议可能有助于从应用和基本物理方面的超导体中旋转运输的发展。
We theoretically study the generation of spin current due to a surface acoustic wave (SAW) in a superconductor. We model an s-wave superconductor as the mean-field Hamiltonian and calculate spin current generated via spin-vorticity coupling based on kinetic theory. The results suggest that the spin current can be driven in a single superconductor layer, and our estimation suggests that the detectable magnitude of the spin current can be generated in aluminum. Our proposal may contribute to the advancement of spin transport in superconductors from application and fundamental physics aspects.
