Charge-imbalance effects in intrinsic Josephson systems

S. Rother; Y. Koval; P. Müller; R. Kleiner; D. A. Ryndyk; J. Keller; C. Helm

doi:10.1103/PhysRevB.67.024510

← Back to search

Charge-imbalance effects in intrinsic Josephson systems

S. Rother, Y. Koval, P. Müller, R. Kleiner, D. A. Ryndyk, J. Keller, C. Helm

DOI 10.1103/PhysRevB.67.024510 · Physical Review B

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

We report on two types of experiments with intrinsic Josephson systems made from layered high-Tc superconductors which show clear evidence of nonequilibirum effects. (1) In two-point measurements of IV curves in the presence of high-frequency radiation a shift of the voltage of Shapiro steps from the canonical value Vs=hf/(2e) has been observed. (2) In the IV curves of double-mesa structures an influence of the current through one mesa on the voltage measured on the other mesa is detected. Both effects can be explained by charge imbalance on the superconducting layers produced by the quasiparticle current, and can be described successfully by a recently developed theory of nonequilibrium effects in intrinsic Josephson systems.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Tl2Ba2Ca2Cu3O10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown