Dynamics of vortex–antivortex pair in a superconducting thin strip with narrow slits<sup><xref rid="cpb_26_4_047403fn1" ref-type="fn">*</xref></sup> <fn id="cpb_26_4_047403fn1"> <label>*</label> <p>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).</p> </fn>

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 An^{1, †}, Xue Cun², Zhou You-He^{3, 4}

(color online) (a) Current–voltage characteristics of the sample contained a narrow slit with length (black solid line) and with smaller length (dashed line) in the current increasing regime for . Panels~1–4 shows the inset snapshots of Cooper-pair density indicated in the I–V curve. (b) Equilibrated voltage vs time responses of the sample with centered slit of length at , . The insets show the distributions of PSLs at times indicated in the V–t curve.