THERMAL NOISE IN HIGH-TEMPERATURE SUPERCONDUCTING-NORMAL-SUPERCONDUCTING STEP-EDGE JOSEPHSON-JUNCTIONS

被引：9

作者：

BERKOWITZ, SJ

SKOCPOL, WJ

MANKIEWICH, PM

ONO, RH

MISSERT, N

ROSENTHAL, PA

VALE, LR

机构：

[1] BOSTON UNIV,DEPT PHYS,BOSTON,MA 02215

[2] MIT,LINCOLN LAB,LEXINGTON,MA 02173

[3] NIST,BOULDER,CO 80303

来源：

JOURNAL OF APPLIED PHYSICS | 1994年 / 76卷 / 02期

关键词：

D O I：

10.1063/1.357798

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have fabricated YBa2Cu3O7-delta-normal metal-YBa2Cu3O7-delta step-edge Josephson junctions that fit the resistively shunted junction model with Johnson-Nyquist thermal noise. The I- V curves are well fit over a large temperature range for junctions of varying critical current values. There is good agreement between the fitted thermal noise temperature and the measured ambient temperature. This is strong evidence that these junctions are not dominated by superconducting shorts longer than the superconducting coherence length.

引用

页码：1337 / 1339

页数：3

共 17 条

[1] VOLTAGE DUE TO THERMAL NOISE IN DC JOSEPHSON EFFECT [J].