Critical behavior of unconventional superconductors with quenched impurities

G. Busiello; D. I. Uzunov

doi:10.1103/PhysRevB.42.1018

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Critical behavior of unconventional superconductors with quenched impurities

G. Busiello, D. I. Uzunov

DOI 10.1103/PhysRevB.42.1018 · Physical Review B

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Abstract

The effect of quenched impurities with short-range random correlations on the critical behavior of generalized Ginzburg-Landau models of unconventional superconductors is investigated by the means of the renormalization group. The fixed points of the renormalization-group equations are obtained and their stability properties are discussed using the ε analysis. It is shown that the quenched impurities do not alter the order of the phase transitions and the critical behavior of pure systems with symmetry indices n≥4. The results are related to properties of heavy-fermion and high-Tc superconductors.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
UBe13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
(U1-xThx)Be13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
CeCu2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown