Spontaneous flux in a d-wave superconductor with time-reversal-symmetry-broken pairing state at {110}-oriented boundaries
Jian-Xin Zhu, C. S. Ting
DOI 10.1103/PhysRevB.60.R3739 · Physical Review B
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Abstract
The induction of an s-wave component in a d-wave superconductor is considered. Near the {110}-oriented edges of such a sample, the induced s-wave order parameter together with the d-wave component forms a complex combination d+eiφs, which breaks the time-reversal symmetry (BTRS) of the pairing state. As a result, the spontaneous current is created. We numerically study the current distribution and the formation of the spontaneous flux induced by the current. We show that the spontaneous flux formed from a number of defect lines with {110} orientation has a measurable strength. This result may provide an unambiguous way to check the existence of the BTRS pairing state at {110}-oriented boundaries.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92.4 | Pressure not reported | unknown |
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