Inelastic-tunneling model for the linear conductance background in the high-Tc superconductors

J. R. Kirtley; D. J. Scalapino

doi:10.1103/PhysRevLett.65.798

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Inelastic-tunneling model for the linear conductance background in the high-Tc superconductors

J. R. Kirtley, D. J. Scalapino

DOI 10.1103/PhysRevLett.65.798 · Physical Review Letters

T1

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Abstract

The linear conductance background observed in tunneling into the high-Tc superconductors has often been interpreted as a density-of-states effect. Here we argue that it may be due instead to strong inelastic electron tunneling from a broad, flat continuum of states. We provide a specific model for such a continuum of states in the high-Tc superconductors based upon a form for the spin-fluctuation spectral weight which fits NMR data, and compare the predictions of this model with experiment.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	36	Pressure not reported	onset
La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	36	Pressure not reported	onset
La1.85Sr0.15CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown