CURRENT CONTROLLED HIGH-TC SUPERCONDUCTING SWITCH

被引：9

作者：

MA, QY

YANG, ES

机构：

[1] COLUMBIA UNIV,CTR TELECOMMUN RES,NEW YORK,NY 10027

[2] COLUMBIA UNIV,DEPT ELECT ENGN,NEW YORK,NY 10027

来源：

CRYOGENICS | 1990年 / 30卷 / 12期

基金：

美国国家科学基金会;

关键词：

HIGH TC SUPERCONDUCTORS; CRITICAL CURRENTS; LOW TEMPERATURE ELECTRONICS;

D O I：

10.1016/0011-2275(90)90223-Y

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

When a current is applied above the critical current I(c) of a superconductor, the material is in its normal state and has a finite resistance. Below I(c) the material becomes a superconductor with zero resistance. Switching between these two states can be achieved by modulating a current through the sample. Various high T(c) superconducting (HTS) line structures have been made. In the normal state these structures are ordinary resistors with resistances ranging from 10-OMEGA to 100 k-OMEGA. The critical currents are in the range 10-mu-A - 100 mA. Switching behaviour has been observed in a simple divider circuit using the HTS lines at 77 K. Applications of the current controlled HTS switch to digital and logic circuits are discussed.

引用

页码：1146 / 1148

页数：3