Interlayer tunneling model for the c-axis resistivity in high-temperature superconductors

K. E. Gray; D. H. Kim

doi:10.1103/PhysRevLett.70.1693

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Interlayer tunneling model for the c-axis resistivity in high-temperature superconductors

K. E. Gray, D. H. Kim

DOI 10.1103/PhysRevLett.70.1693 · Physical Review Letters

T1

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Abstract

The c-axis resistivity of Bi2Sr2CaCu2Ox single crystals shows a magnetic-field-dependent peak below the zero-field Tc. We find good agreement with the temperature and field dependence of the peak, by modeling the c-axis conduction as a series stack of Josephson tunnel junctions. For intermediate values of the Josephson coupling, we predict such a peak and verify it by measurements on discreet, thin-film Josephson junctions. The exaggerated effects in Bi2Sr2CaCu2Ox result from its unusually large energy gap and fluctuations.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi2Sr2CaCu2Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Bi2Sr2CaCu2O Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown