DYNAMIC COOPER-PAIR BREAKING BY TUNNEL INJECTION OF QUASI-PARTICLES INTO A HIGH-T(C) YBA2CU3O7 SUPERCONDUCTOR

被引：33

作者：

IGUCHI, I

NUKUI, K

LEE, K

机构：

[1] Institute of Materials Science, University of Tsukuba, Tsukuba

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.50.457

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The measurements on strong quasiparticle injection through a tunnel barrier into a high-T(c) YBa2Cu3O7 (YBCO) bicrystal film/junction or a YBCO film are presented. With an increase of tunnel injection current, both the Josephson and film critical currents decreased and were driven to zero to yield the normal state at a certain critical injection current density which ranged 20-140 A/cm2 for 70 to a few 100 mV voltage bias. The results are qualitatively different from simple heating phenomenon and reflect nonthermal nature of high-T(c) superconductors under injection.

引用

页码：457 / 461

页数：5

共 30 条

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