Localized bosonic modes in superconductors
Dirk K. Morr, Roy H. Nyberg
DOI 10.1103/PhysRevB.68.060505 · Physical Review B
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Abstract
We show that a localized bosonic mode acts as a “defect” in s- and dx2−y2-wave superconductors, inducing bound or resonance states, whose spectral signatures are peaks in the superconductor’s density of states. We study the peaks’ shape and energy as a function of temperature and the mode’s frequency and lifetime. We identify several signatures of the localized mode that qualitatively distinguishes it from static magnetic or nonmagnetic impurities.
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. | — | Pressure not reported | unknown |
| Sr2RuO4 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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