AI 中文总结
该研究探究Kitaev磁体/石墨烯双层中电荷电流诱导马约拉纳电流的机制,通过微扰计算得到马约拉纳电流解析表达式,还讨论了马约拉纳热电流并估计其大小,为马约拉纳费米子的电子调控提供了理论依据。
AI 中文摘要
我们研究了Kitaev磁体与石墨烯耦合体系中,由电荷电流诱导的马约拉纳电流,其机制是Kitaev磁体中的马约拉纳费米子被石墨烯中的电子拖拽。我们基于Kondo型马约拉纳-电子耦合的微扰计算了马约拉纳电流密度,得到了电荷电流诱导的马约拉纳电流的解析表达式,表明可通过电子调控电中性的马约拉纳费米子。我们还讨论了电荷电流诱导的马约拉纳热电流,并给出了其大小的估计值。
英文摘要
We investigate Majorana current induced by charge current in Kitaev magnets coupled with graphene through the mechanism by which Majorana fermions in the Kitaev magnet are dragged by electrons in graphene. We calculate Majorana current density based on the perturbation with respect to a Kondo type Majorana-electron coupling and obtain an analytical expression of the Majorana current induced by charge current, indicative of electronic control of charge-neutral Majorana fermions. We also discuss Majorana heat current induced by charge current and give estimations of their magnitudes.
Comments6 pages, 1 figure