DIRECT OBSERVATION OF VORTEX DYNAMICS IN 2-DIMENSIONAL JOSEPHSON-JUNCTION ARRAYS

被引：7

作者：

DODERER, T ^{[1
]}

LACHENMANN, SG ^{[1
]}

HUEBENER, RP ^{[1
]}

BOOI, PAA ^{[1
]}

BENZ, SP ^{[1
]}

机构：

[1] NATL INST STAND & TECHNOL,BOULDER,CO 80303

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1995年 / 5卷 / 02期

关键词：

549.3; Others; including Bismuth; Boron; Cadmium; Cobalt; Mercury; Niobium; Selenium; Silicon; Tellurium and Zirconium - 701.1 Electricity: Basic Concepts and Phenomena - 701.2 Magnetism: Basic Concepts and Phenomena - 708.3 Superconducting Materials - 741.1 Light/Optics - 804.2 Inorganic Compounds;

D O I：

10.1109/77.403153

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Spatially resolved images of the dynamic states of current-biased overdamped two-dimensional arrays of Nb/AlOx/Nb Josephson junctions were obtained using low-temperature scanning electron microscopy. We present two-dimensional imaging results describing various vortex dynamic regimes in zero applied magnetic field. The nucleation of current-induced vortices at the array boundaries and their subsequent motion into the array interior are observed for bias currents slightly above the array critical current. With increasing bias current, vortex-vortex interaction becomes important. Discussions on the coherent microwave radiation emission are presented.

引用

页码：2723 / 2726

页数：4

共 13 条

[1]

ASLAMAZOV LG, 1975, ZH EKSP TEOR FIZ+, V68, P766

[2] COHERENT EMISSION FROM 2-DIMENSIONAL JOSEPHSON JUNCTION ARRAYS [J].