Nonmagnetic impurity effect in vortex states of chiral superconductors
Takahiro Ueda, Yasuaki Sera, Hiroto Adachi, Masanori Ichioka
DOI 10.1103/PhysRevB.103.014506 · Physical Review B
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Abstract
Nonmagnetic impurity scattering effects in the vortex states are studied in the Born and the unitary limits for chiral superconductors by Eilenberger theory. We compare the spatial structure of the pair potential and local electronic structure in chiral p-wave superconductors with those in two types of chiral d-wave superconductors; d1±≡dxz±idyz and d2±≡dx2−y2±idxy pairing. Similar behaviors of the pair potentials are seen in p±- and d1±-wave superconductors. In chiral d-wave superconductors, due to lack of Majorana properties relating to the s-wave Cooper pair amplitude, zero-energy vortex bound states are easily destroyed by the impurity scattering, compared to the Born limit in the chiral p−-wave superconductors. This decay is also seen in the unitary limit in the chiral p−-wave superconductors. These differences are also discussed in the relation to s-wave Cooper pair amplitude and the local scattering rate. The impurity effects are also compared with those in s-wave superconductors.
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 |
| UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| UTe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| URu2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| SrPtAs Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| NbSe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YNi2B2C 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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