Impurities and Quasi-One-Dimensional Transport in a d-Wave Superconductor
A. V. Balatsky, A. Rosengren, B. L. Altshuler
DOI 10.1103/PhysRevLett.73.720 · Physical Review Letters
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Abstract
Impurity scattering in the unitary limit produces low-energy quasiparticles with an anisotropic spectrum in a two-dimensional d-wave superconductor. We describe a new quasi-one-dimensional limit of the quasiparticle scattering, which might occur in a superconductor with short coherence length and with finite impurity potential range. The dc conductivity in a d-wave superconductor is predicted to be proportional to the normal state scattering time and is impurity dependent. The quasi-one-dimensional regime will occur in high-Tc superconductors above critical impurity concentration. We argue that the impurities produce weak orthogonal localization of the quasiparticles.
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. | — | Pressure not reported | unknown |
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