Model for Vortex-Core Tunneling Spectroscopy of Chiral p-Wave Superconductors via Odd-Frequency Pairing States
Yasunari Tanuma, Nobuhiko Hayashi, Yukio Tanaka, Alexander A. Golubov
DOI 10.1103/PhysRevLett.102.117003 · Physical Review Letters
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Abstract
The local density of states is studied theoretically in terms of the odd-frequency (odd-ω) Cooper pairing induced around a vortex core. We find that a zero energy peak in the density of states at the vortex center is robust against nonmagnetic impurities in a chiral p-wave superconductor owing to an odd-ω s-wave pair amplitude. We suggest how to discriminate a spin-triplet pairing symmetry and spatial chiral-domain structure by scanning tunneling spectroscopy via odd-ω pair amplitudes inside vortex cores.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| 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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