CNR-SPIN and Dipartimento di Fisica E R Caianiello, Università degli Studi di Salerno, Fisciano (Sa), Italy.
J Phys Condens Matter. 2011 Nov 2;23(43):435701. doi: 10.1088/0953-8984/23/43/435701. Epub 2011 Oct 13.
We investigate the behaviour of a single Abrikosov vortex trapped in a mesoscopic superconducting cylindrical surface with a magnetic field applied transverse to its axis. In the framework of the time-dependent Ginzburg-Landau formalism we show that, provided the transport current and the magnetic field are not large, the vortex behaves as an overdamped quasi-particle in a tilted washboard potential. The cylindrical thin strip with the trapped vortex exhibits E(J) curves and time-dependent electric fields very similar to the ones exhibited by a resistively shunted Josephson weak link.
我们研究了在横向磁场中被捕获在介观超导圆柱形表面上的单个 Abrikosov 涡旋的行为。在时变 Ginzburg-Landau 形式主义的框架内，我们表明，只要传输电流和磁场不大，涡旋就表现为倾斜洗衣板势中的过阻尼准粒子。带有捕获涡旋的圆柱形薄带表现出与电阻分路 Josephson 弱连接非常相似的 E(J)曲线和时变电场。
