Quasiparticle excitation in a superconducting tennel junction by. cap alpha. particles
Quasiparticle excitation in a superconducting tennel junction by. cap alpha. particles
复制标题
超导隧道结中的准粒子激发。
DOI：
10.1103/physrevb.22.168
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发表时间：
1980
影响因子：
3.7
通讯作者：
H. Mazaki
中科院分区：
文献类型：
--
作者：
M. Kurakado;H. Mazaki
由…诱发的电信号…在1.37 ~ 4.2 K的温度范围内测量了Sn的S-I-S隧道结中的粒子。从脉冲高度对通过结的电流和温度的依赖关系来看，样品中电流-电压（I-V）特性的脉冲变化不能简单地用温度升高引起的局域超导-正态转变来解释。然而，通过采用一个简单的模型，揭示了过量的准粒子对结的特性变化是必不可少的。
The electric signals induced by ..cap alpha.. particles in an S-I-S tunnel junction of Sn were measured in the temperature region of 1.37-- 4.2 K. From the pulse-height dependence on the electric current through the junction and on temperature, it was found that the impulsive change in the current-voltage (I-V) characteristics in the sample cannot be explained simply by the localized superconducting-normal transition due to the temperature increase. By adopting a simple model, however, it has been revealed that excess quasiparticles are essential to the characteristic change in the junction.