Spontaneous Time Reversal and Parity Breaking in a dx2−y2-Wave Superconductor with Magnetic Impurities
A. V. Balatsky
DOI 10.1103/PhysRevLett.80.1972 · Physical Review Letters
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Abstract
It is shown that patches of complex dxy components are generated around a magnetic impurity in the presence of coupling between the orbital moment of the condensate and the impurity spin Sz. The locally induced dxy gap leads to the fully gapped quasiparticle spectrum near impurity. It is suggested that at low temperatures the well defined patches of dxy are formed, possibly leading to a phase locked state due to Josephson tunneling. Violation of time-reversal symmetry and parity occurs spontaneously at this point via a second order transition. In the ordered phase both the impurity magnetization and the dxy component of the order parameter develop and are proportional to each other.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.2 | Pressure not reported | unknown |
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