在具有Rashba自旋轨道耦合的自旋劈裂超导体中耦合Higgs模式与铁磁共振
Coupling the Higgs mode and ferromagnetic resonance in spin-split superconductors with Rashba spin-orbit coupling
AI总结:
本文研究Rashba自旋轨道耦合超导体中非零动量的Higgs模式,发现其与外部交换场线性耦合,可显著增强铁磁绝缘体/超导体双层系统的自旋泵浦效应,并可通过逆自旋霍尔效应电压进行探测。
摘要:
我们考虑超导体中非零动量处的Higgs模式,并证明在存在Rashba自旋轨道耦合的情况下,它与外部交换场发生线性耦合。Higgs-自旋耦合显著改变了超导临界温度附近的自旋磁化率,从而增强了铁磁绝缘体/超导体双层系统中的自旋泵浦效应。我们表明,可以通过测量由逆自旋霍尔效应产生的磁振子诱导电压来探测这一效应。
英文摘要:
We consider the Higgs mode at nonzero momentum in superconductors and demonstrate that in the presence of Rashba spin-orbit coupling, it couples linearly with an external exchange field. The Higgs-spin coupling dramatically modifies the spin susceptibility near the superconducting critical temperature and consequently enhances the spin pumping effect in a ferromagnetic insulator/superconductor bilayer system. We show that this effect can be detected by measuring the magnon-induced voltage generated by the inverse spin Hall effect.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。