Geometric heat trapping in niobium superconductor–insulator– superconductor mixers due to niobium titanium nitride leads
Geometric heat trapping in niobium superconductor–insulator– superconductor mixers due to niobium titanium nitride leads
复制标题
铌钛氮化物引线导致铌超导-绝缘体-超导混合器中的几何热捕获
DOI：
--
复制
发表时间：
2000
期刊：
影响因子：
--
通讯作者：
T. Klapwijk
中科院分区：
文献类型：
--
作者：
B. Leone;B. Jackson;Jiansong Gao;T. Klapwijk
我们分析了NbTiN引线的Nb超导体-绝缘体-超导体混合器的电流-电压特性，以确定该装置中的加热过程。我们论证了电子-电子相互作用比电子-声子相互作用快得多，并指出热流到熔池温度受结中电子-声子相互作用时间的限制。建议了一种解决方案，以显著减少供暖。
We analyze the current–voltage characteristics of a Nb superconductor–insulator–superconductor mixer with NbTiN leads to identify the heating processes in this device. We argue that the electron–electron interaction is much faster than the electron–phonon interaction, and show that the heat flow to the bath temperature is limited by the electron–phonon interaction time in the junction. A solution is suggested to considerably reduce the heating.