Pressure dependence of superconducting and magnetic critical temperatures in the ruthenocuprates

R. Citro; G. G. N. Angilella; M. Marinaro; R. Pucci

doi:10.1103/PhysRevB.71.134525

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Pressure dependence of superconducting and magnetic critical temperatures in the ruthenocuprates

R. Citro, G. G. N. Angilella, M. Marinaro, R. Pucci

DOI 10.1103/PhysRevB.71.134525 · Physical Review B

T1

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Abstract

We study the dependence on filling and pressure of the superconducting and ferromagnetic critical temperatures of the ruthenocuprates, within the two-band model. At zero pressure, we find separate regions of coexistence of superconductivity and ferromagnetism as a function of filling, with contiguous regions merging together as the pressure increases. As a function of pressure, a stronger enhancement of the magnetic phase results in a reduced pressure effect on the superconducting critical temperature. A comparison with recent experiments on the determination of the critical temperatures as a function of the pressure is also discussed.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
RuSr2GdCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	45	Pressure not reported	unknown