论文标题

通过片上磁制冷冷却的纳米电机设备的热传输

Thermal transport in nanoelectronic devices cooled by on-chip magnetic refrigeration

论文作者

Autti, S., Bettsworth, F. C., Grigoras, K., Gunnarsson, D., Haley, R. P., Jones, A. T., Pashkin, Yu. A., Prance, J. R., Prunnila, M., Thompson, M. D., Zmeev, D. E.

论文摘要

片上的脱磁化冷藏最近已成为达到纳米级结构中微甲虫电子温度的强大工具。冷却片和外片组件以及热子系统动力学的相对重要性尚待分析。我们在实验和数值上研究了带有片上铜制冷剂的库仑阻滞温度计,表明该设备中的动力学是由第一原理模型捕获的。我们的工作显示了如何模拟以下设备中的热动力学,以至于微底温度温度,并概述了在这个新型温度范围内的量子技术和基本纳米科学的低投资平台的配方。

On-chip demagnetization refrigeration has recently emerged as a powerful tool for reaching microkelvin electron temperatures in nanoscale structures. The relative importance of cooling on-chip and off-chip components and the thermal subsystem dynamics are yet to be analyzed. We study a Coulomb blockade thermometer with on-chip copper refrigerant both experimentally and numerically, showing that dynamics in this device are captured by a first-principles model. Our work shows how to simulate thermal dynamics in devices down to microkelvin temperatures, and outlines a recipe for a low-investment platform for quantum technologies and fundamental nanoscience in this novel temperature range.

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