Spontaneous flux in a d-wave superconductor with time-reversal-symmetry-broken pairing state at {110} boundaries
arXiv:cond-mat/9810205 · doi:10.1103/PhysRevB.60.R3739
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 d-wave component forms a complex combination d+e^{iϕ} s, 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 a unambiguous way to check the existence of BTRS pairing state at {110}-oriented boundaries.
4 pages, 2 ps-figures, content changed, references added
References in corpus (6)
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Cited by in corpus (5)
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- Spontaneous magnetic moments in YBCO thin films
- Absence of broken time reversal symmetry beneath the surface of YBCO films
- Field Driven Pairing State Phase Transition in d_x^2-y^2+id_xy-Wave Superconductors