摘要
The controlled tailoring of the energy distribution in an electron system opens the way to interesting new physics and device concepts, as demonstrated by research on metallic nanodevices during recent years. Here we investigate how Josephson coupling in a superconductor-InAs nanowire junction can be tuned by means of hot-electron injection and we show that a complete suppression of superconductive effects can be achieved using a power as low as 100 pW. Nanowires offer a novel design freedom as they allow axial and radial heterostructures to be defined as well as control over doping profiles, which can be crucial in the development of devices--such as nanorefrigerators--where precisely controlled and predictable energy barriers are mandatory. Our work provides estimates for unknown key thermal and electrical parameters, such as the electron-phonon coupling, in our InAs nanostructures.
在一个电子系统精力分发定制控制打开方法到有趣的新物理和设备概念，在最近的年期间由关于金属性的 nanodevices 的研究示威了。这里，我们调查在一个 superconductor-InAs nanowire 连接联合的 Josephson 怎么能借助于热电子的注射被调节，我们证明超导的效果的完全的抑制能用象 100 pW 一样低的力量被完成。他们允许轴、光线的 heterostructures 象对做的控制一样被定义的新奇设计自由介绍的 Nanowires 提议，它能作为精确控制的 nanorefrigeratorswhere 和可预言的精力障碍在 devicessuch 的开发关键是强制的。我们的工作为未知关键热、电的参数提供估计，例如联合的电子声子，在我们的 InAs nanostructures。
