Ultraefficient cooling in ferromagnet-superconductor microrefrigerators

被引：30

作者：

Giazotto, F ^{[1
]}

Taddei, F

Fazio, R

Beltram, F

机构：

[1] Scuola Normale Super Pisa, INFM, NEST, I-56126 Pisa, Italy

[2] ISI Fdn, I-10133 Turin, Italy

[3] Univ Catania, Dipartimento Metodol Fis & Chim Ingn, I-95129 Catania, Italy

来源：

APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 20期

关键词：

D O I：

10.1063/1.1481242

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A promising scheme for electron microrefrigeration based on ferromagnet-superconductor contacts is presented. In this setup, cooling power densities up to 600 nW/mum(2) can be achieved, leading to electronic temperature reductions largely exceeding those obtained with existing superconductor-normal metal tunnel contacts. Half-metallic CrO2/Al bilayers are indicated as ideal candidates for the implementation of the device. (C) 2002 American Institute of Physics.

引用

页码：3784 / 3786

页数：3

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