Journal
JOURNAL OF APPLIED PHYSICS
Volume 95, Issue 9, Pages 4941-4948Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1689754
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- Engineering and Physical Sciences Research Council [GR/S42255/01, GR/S42262/01] Funding Source: researchfish
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We have measured the transport properties of intrinsic Josephson junction arrays as a function of both temperature and magnetic field, the field being applied perpendicular to the transport current. We show that they depend upon whether the junction width exceeds or is less than the Josephson penetration depth. For widths greater than the Josephson penetration depth, the transport properties are dominated by Josephson vortex flow. For widths less than the Josephson penetration depth, the zero-field dissipation is dominated by Josephson phase diffusion. For non-zero applied fields, there is a good fit to the classical Fraunhofer dependence of the critical current upon field in addition to a competition between Josephson phase diffusion and Josephson vortex flow. (C) 2004 American Institute of Physics.
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