Impurity quantum phase transition in a current-carrying d-wave superconductor
Hua Chen, Yezheng Wu, Shuxiang Yang, Jianhui Dai, Jian-Xin Zhu
DOI 10.1103/PhysRevB.85.205139 · Physical Review B
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Abstract
We study an Anderson impurity embedded in a d-wave superconductor carrying a supercurrent. The low-energy impurity behavior is investigated by using the numerical renormalization group method developed for arbitrary electronic bath spectra. The results explicitly show that the local impurity state is completely screened upon the nonzero current intensity. The impurity quantum criticality is in accordance with the well-known Kosterlitz-Thouless transition.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8+δ 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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