Soliton induced critical current oscillations in two-band superconducting bridges

Abstract

Using time-dependent Ginzburg-Landau theory we find oscillations of critical current density $j_c$ as a function of the length $L$ of the bridge formed from two-band superconductor. We explain this effect by appearance of the phase solitons in the bridge at $j<j_c$, those number changes with change of $L$. In case of sufficiently strong interband coupling oscillations of $j_c$ disappear.

6 pages, 7 figures

References in corpus (5)

• Ginzburg-Landau theory of vortices in a multi-gap superconductor
• Magnetic response of mesoscopic superconducting rings with two order parameters
• Phase textures induced by dc current pairbreaking in multilayer structures and two-gap superconductors
• Multi-gap superconductivity and Shubnikov-de Haas oscillations in single crystals of the layered boride OsB_2
• Coherent current states in a two-band superconductor

Cited by in corpus (4)

• Magneto-topological transitions in multicomponent superconductors
• Phase solitons in a weakly coupled three-component superconductor
• Superconductors that do not expel magnetic flux
• DC-driven separation of fractional flux quanta in two-band superconductors