Sub-micron normal-insulator-superconductor tunnel junctions for sensitive thermometry and micro-refrigerators

被引：0
|
作者：
Arena, G
Castellano, MG
Leoni, R
Torrioli, G
Carelli, P
机构：
[1] CNR, IESS, I-00156 Rome, Italy
[2] INFM, I-67040 Laquila, Italy
[3] Univ Aquila, I-67040 Laquila, Italy
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 1999年 / 13卷 / 9-10期
关键词：
D O I：
10.1142/S0217979299001247
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report on measurements of normal-insulator-superconductor tunnel junctions at temperatures below 1K. The junctions have been fabricated by shadow mask technique and e-beam lithography and have submicron dimensions. The measurements on our junctions show that their characteristics are very sensitive to temperature changes making them suitable to be used as a sensitive secondary thermometer. To demonstrate this we use this tunnel structure for sensing the electron temperature drop in a copper strip of an electronic micro-refrigerator, that was made by arrays of tunnel junctions, as well.
引用
收藏
页码：1241 / 1246
页数：6
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