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Persistent Current in Superconducting Nanorings by Matveev, K. A.; Larkin, A. I.; Glazman, L. I. is a scholarly article available to read on EtoBox.

What is Persistent Current in Superconducting Nanorings about?

The superconductivity in very thin rings is suppressed by quantum phase slips. As a result the amplitude of the persistent current oscillations with flux becomes exponentially small, and their shape changes from sawtooth to a sinusoidal one. We reduce the problem of low-energy properties of a superconducting nanoring to that of a quantum particle in a sinusoidal potential and show that the dependence of the current on the flux belongs to a one-parameter family of functions obtained by solving the respective Schrodinger equation with twisted boundary conditions.

Author

Matveev, K. A.; Larkin, A. I.; Glazman, L. I.

Published

2002

Language

EN