Measurement of the Intrinsic Subgap Dissipation in Josephson Junctions

J. R. Kirtley; C. D. Tesche; W. J. Gallagher; A. W. Kleinsasser; R. L. Sandstrom; S. I. Raider; M. P. A. Fisher

doi:10.1103/PhysRevLett.61.2372

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Measurement of the Intrinsic Subgap Dissipation in Josephson Junctions

J. R. Kirtley, C. D. Tesche, W. J. Gallagher, A. W. Kleinsasser, R. L. Sandstrom, S. I. Raider, M. P. A. Fisher

DOI 10.1103/PhysRevLett.61.2372 · Physical Review Letters

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Abstract

We show that the subgap dissipation in sufficiently high-quality Josephson junctions, as measured directly from the current at which the junctions switch from the voltage state into the zero-voltage state, is controlled by thermally excited quasiparticle tunneling. The dissipation is in excellent agreement with a recent theory of Chen, Fisher, and Leggett.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	9.3	Pressure not reported	unknown
PbAuIn Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	7	Pressure not reported	unknown