Anisotropic Dependence of Superconductivity on Uniaxial Pressure in CeIrIn5

O. M. Dix; A. G. Swartz; R. J. Zieve; J. Cooley; T. R. Sayles; M. B. Maple

doi:10.1103/PhysRevLett.102.197001

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Anisotropic Dependence of Superconductivity on Uniaxial Pressure in CeIrIn5

O. M. Dix, A. G. Swartz, R. J. Zieve, J. Cooley, T. R. Sayles, M. B. Maple

DOI 10.1103/PhysRevLett.102.197001 · Physical Review Letters

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Abstract

We measure the effect of uniaxial pressure on the superconducting transition temperature Tc in CeIrIn5. We find a linear change in Tc with both a-axis and c-axis pressure, with slopes of 56 and −66 mK/kbar, respectively. By comparing results from doping studies and different types of pressure measurements, we separate the influences of hybridization and dimensionality on Tc. We find the true geometric influence, for constant hybridization, is ∂Tc/∂(c/a)=44 K.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
CeIrIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	0.4	Pressure unresolved	midpoint
CeRhIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	0.1	Pressure unresolved	unknown
CeRhIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	2.1	1.6 GPa	unknown
CeCoIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure unresolved	unknown