Soliton in Two-Band Superconductor
Y. Tanaka
DOI 10.1103/PhysRevLett.88.017002 · Physical Review Letters
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Abstract
There is a soliton in a superconductor having two bands (two-band superconductor), when the interband interaction is much smaller than the intraband interaction. This soliton is in a stable state. In the soliton the relative phase between two gap parameters rotates 0 to 2π (or −π to π), where each gap resides in each band. A phase slip of the superconducting order parameter is accompanied with the soliton. The phase slip is not n×2π where n is an integer. A soliton traps the flux inside the superconducting ring, of which magnitude is not integral multiples of the fluxoid quantum.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| CuxBa2Ca3Cu4Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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