Local suppression of Josephson currents in niobium/two-dimensional electron gas/niobium structures by an injection current

被引：20

作者：

Neurohr, K

Schäpers, T

Malindretos, J

Lachenmann, S

Braginski, AI

Lüth, H

Behet, M

Borghs, G

Golubov, AA

机构：

[1] Forschungszentrum Julich, Inst Schicht & Ionentech, D-52425 Julich, Germany

[2] Interuniv Microelect Ctr, B-3001 Louvain, Belgium

[3] Univ Twente, Fac Appl Phys, NL-7500 AE Enschede, Netherlands

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.59.11197

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigated niobium-AlGaSb/InAs-niobium hybrid structures using a high mobility two-dimensional electron gas as a weak link. The Josephson current observed in this structure was suppressed by an injection current driven into the weak link via an additional normal lead. Using a four-terminal configuration the supercurrent is suppressed all over the weak link. In a three-terminal configuration it was possible to suppress the supercurrent locally. [S0163-1829(99)06217-7].

引用

页码：11197 / 11200

页数：4

共 17 条

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