Superconducting quantum interference device based on MgB2 nanobridges

被引：83

作者：

Brinkman, A

Veldhuis, D

Mijatovic, D

Rijnders, G

Blank, DHA

Hilgenkamp, H

Rogalla, H

机构：

[1] Univ Twente, Fac Appl Phys, Low Temp Div, NL-7500 AE Enschede, Netherlands

[2] Univ Twente, MESA Res Inst, NL-7500 AE Enschede, Netherlands

来源：

APPLIED PHYSICS LETTERS | 2001年 / 79卷 / 15期

关键词：

D O I：

10.1063/1.1407864

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The superconductor MgB2, with a transition temperature of 39 K, has significant potential for future electronics. An essential step is the achievement of Josephson circuits, of which the superconducting quantum interference device (SQUID) is the most important. Here, we report Josephson quantum interference in superconducting MgB2 thin films. Modulation voltages of up to 30 muV are observed in an all-MgB2 SQUID, based on focused-ion-beam patterned nanobridges. These bridges, with a length scale < 100 nm, have outstanding critical current densities of 7x10(6) A/cm(2) at 4.2 K. (C) 2001 American Institute of Physics.

引用

页码：2420 / 2422

页数：3

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