Dynamics of vortex–antivortex pair in a superconducting thin strip with narrow slits*

Project supported by the Fundamental Research Funds for the Central Universities, China (Grant Nos. 310812171011 and G2016KY0305), the National Natural Science Foundation of China (Grant No. 11421062), and the National Key Project of Magneto-Constrained Fusion Energy Development Program, China (Grant No. 2013GB110002).

He An1, †, Xue Cun2, Zhou You-He3, 4
       

(color online) Current–voltage characteristics of the sample with the centered-slit (black solid line) and off-centered slit with shift distance (red dashed line) of slit length . Panels 1–4 show the Cooper-pair density for current values indicated in the IV curves.