Physcial Properties of SuperconductorNo Access

SUB-BRANCH SPLITTING IN JOSEPHSON-VORTEX-FLOW CHARACTERISTICS OF A STACK OF Bi₂Sr₂CaCu₂O_8+x INTRINSIC JOSEPHSON JUNCTIONS

MYUNG-HO BAE

Department of Physics, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea

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and

HU-JONG LEE

Department of Physics, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea

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https://doi.org/10.1142/S0217979205028232Cited by:1 (Source: Crossref)

Abstract

We observed subbranch splitting in the low-bias vortex-flow branch of a dense-Josephson-vortex state in current-voltage characteristics of Bi₂Sr₂CaCu₂O_8+x intrinsic Josephson junctions in the long-junction limit. We suggest that each subbranch corresponds to a plasma mode in serially coupled Josephson junctions, manifested in the Josephson vortex-flow current-voltage characteristics resonating with the plasma modes.

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