TaC芯石墨包覆纳米电容器中反馈电压和温度振荡的间歇约瑟夫森效应
Intermittent Josephson effect with feedback voltage and temperature oscillations in graphite-coated nanocapsules with superconducting TaC core
摘要：
在2K附近的电压-电流曲线上观察到了以电压和温度振荡形式出现的间歇约瑟夫森效应。这种现象是由于非平衡条件下，当库珀对跨越一个结，这刺激了光子的发射和反馈的结的温度变化。它发生在由TaC/碳/TaC隧穿结组成的三维颗粒框架中，具有Mott金属-绝缘体转变，低于非理想II型超导体TaC的临界温度Tc。
英文摘要：
An intermittent Josephson effect in the form of voltage and temperature oscillations in the voltage - current curves near 2 K is observed in pellets consisting of superconducting TaC nanocapsules coated with graphite. This phenomenon is attributed to non-equilibrium conditions, when Cooper pairs across a junction, which stimulate the emission of photons and the feedback temperature change of the junction. It occurs in a three-dimensional granular framework composed of TaC/carbon/TaC tunneling junctions with a Mott metal-insulator transition, below the critical temperature Tc of non-ideal type-II superconductor TaC.
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