Anomalous Differential Resistances in Point Contact Josephson Junctions

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概要

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• New structures of voltage-current characteristics in Nb-Nb point contact Josephson junctions were found by using a differentiation technique. The first and the second derivatives of junction voltage with respect to the current as a function of bias reveal finer structures than V-I characteristics of junction. These new structures can be regarded as the result of thermal runaway of multiple point contacts in the Josephson junctions due to Joule heating. When one of the multiple point contacts suffers thermal runaway, the resistance of the junction changes suddenly and the peaks appear in V-dV/dI and V-d^2V/dI^2 characteris-tics.

• 一般社団法人日本物理学会の論文
• 1975-12-15

著者

• Kaminaga Masaaki

  Department Of Physics University Of Tokyo

関連論文

• rf Impedance of Superconducting Weak Links
• Solutions of a Nonlinear Equation of a Resistively Shunted Model of Josephson Junctions
• Anomalous Differential Resistances in Point Contact Josephson Junctions

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