论文标题
多波段超导体FESE中的微波通量流量大厅效应
Microwave flux-flow Hall effect in a multi-band superconductor FeSe
论文作者
论文摘要
我们已经在多波段超导体FESE纯单晶中测量了通量流霍尔的效应，以通过交叉形的双峰腔技术来研究涡流核状态的性质。我们发现，低温下的FESE的通量流霍尔角度约为0.5，等于或小于有效粘性阻力系数测量结果。此功能与铜酸盐超导体形成鲜明对比。孔和电子造成的多波段超导体的电导率张量显示出通过电子和孔通过电子和孔对通量流霍尔电压的部分取消，Wchich可以解释观察到的特征。因此，我们的研究表明涡流动力学中多波段性质的外观。
We have measured the flux-flow Hall effect in a multi-band superconductor FeSe pure single crystal to investigate the nature of the vortex core state by means of the cross-shaped bimodal cavity technique. We found that the flux-flow Hall angle of FeSe at low temperatures is about 0.5, which is equal to or smaller than that evaluated by the effective viscous drag coefficient measurements. This feature is in contrast to the cuprate superconductors. The conductivity tensor of multi-band superconductors that are contributed from holes and electrons shows partial cancellation of the flux-flow Hall voltage by the electrons and holes, wchich can explain the observed feature. Therefore, our study suggests the appearance of the multi-band nature in the vortex dynamics.
