Anomalous effect of disorder on spin fluctuations in non-centrosymmetric superconductors

Victor M. Edelstein

doi:10.1103/PhysRevB.78.094514

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Anomalous effect of disorder on spin fluctuations in non-centrosymmetric superconductors

Victor M. Edelstein

DOI 10.1103/PhysRevB.78.094514 · Physical Review B

T1

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Abstract

The spin susceptibility tensor χsij(T) of an impure superconductor (SC) with broken mirror symmetry has been evaluated and a great effect of impurity scattering has been shown. As opposed to conventional singlet superconductors, where the ordinary impurity scattering is known to have no effect on χs(T), the spin susceptibility of a polar symmetry superconductor with s-wave pairing can be isotropic and equal to its value in the normal state in the “dirty” limit Tcτ⪡1, while the superconductor stays in a full-gap state. The effect is bound up with spin-flip transitions which accompany the electron scattering in conductors with the band spin-orbit coupling.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Mo3AlC Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
La5B2C6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Mo3P Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
CeCoSi3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
LaRhSi3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
LaIrSi3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
CePt3Si Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	0.7	Pressure not reported	unknown
LiPt3Si Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	4	Pressure not reported	unknown