论文标题
由于电子的旋转巡回运动,可能出现$π$ -Flux Dirac弦乐形成超导性的可能出现
Possible occurrence of superconductivity by the $π$-flux Dirac string formation due to spin-twisting itinerant motion of electrons
论文作者
论文摘要
我们表明,RASHBA自旋轨道相互作用会导致金属中电子的自旋扭动巡回运动,并实现了没有外部磁场的传导电子的量化回旋运动运动。从浆果连接的角度来看,该{量化}动作的原因是非平凡的浆果连接$ {\ bf a}^{\ rm fic} = - {\ hbar \ froce {\ hbar \ over {2e}}}}}}} \ nablaχ$($χ$ co $ $ 2 $ $ 2ous $ 2ous $ 2ous $ 2 - $ \ hbar = 1,e = 1,c = 1 $)沿着旋转扭动的中心的波函数(a“ dirac string”)的节点奇异性。 由于在我们以前的工作[Ref.1]中已显示出$ \ nablaχ$的集体模式被电子配对稳定并产生超电流,因此$π$ -Flux Dirac String由旋转扭转式巡回式运动创建的符号将由电子投资和生产超恒星稳定。
We show that the Rashba spin-orbit interaction causes spin-twisting itinerant motion of electrons in metals and realizes the quantized cyclotron motion of conduction electrons without an external magnetic field. From the view point of the Berry connection, the cause of this {quantized} motion is the appearance of a non-trivial Berry connection ${\bf A}^{\rm fic}=-{\hbar \over {2e}}\nabla χ$ ($χ$ is an angular variable with period $2π$ that generates $π$ flux (in the units of $\hbar=1, e=1,c=1$) inside the nodal singularities of the wave function (a "Dirac string") along the centers of spin-twisting. Since it has been shown in our previous work[Ref.1]that the collective mode of $\nabla χ$ is stabilized by the electron-pairing and generates supercurrent, the $π$-flux Dirac string created by the spin-twisting itinerant motion will be stabilized by the electron-pairing and produce supercurrent.