Tc enhancement in superconductor and spin-density-wave coexistence

M. Gulácsi; Zs. Gulácsi

doi:10.1103/PhysRevB.39.714

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Tc enhancement in superconductor and spin-density-wave coexistence

M. Gulácsi, Zs. Gulácsi

DOI 10.1103/PhysRevB.39.714 · Physical Review B

T1

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Abstract

The interplay of superconductivity and spin-density waves in a two-band system with imperfect nesting and interband coupling is analyzed. Within this model, enhancement of the superconducting critical transition temperature is found. The influence of the interband coupling on this enhancement is presented in detail. The possible connections with the high-Tc oxidic systems are also discussed. The obtained curves of Tc versus the excess carrier concentration fit well with both La-Ba-Cu-O and Y-Ba-Cu-O cases.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
La2-x(SrBa)xCuO4-y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
YBa2Cu3O6.5+y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
RBa2Cu3O7-y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown