MODEL FOR TUNNELING EXPERIMENTS ON THE 90-K AND 60-K YBA2CU3O7-DELTA PHASES

被引：16

作者：

CUCOLO, AM ^{[1
]}

NOCE, C ^{[1
]}

ROMANO, A ^{[1
]}

机构：

[1] UNIV SALERNO,DIPARTIMENTO FIS TEOR & SUE METODOL SCI APPL,I-84081 BARONISSI,ITALY

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.46.5864

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The tunneling conductances of 90- and 60-K YBCO-based junctions in both the superconducting and the normal state have been quantitatively modeled by a superposition of two BCS-like contributions and a linear one. Strong-coupling superconductivity in the CuO2 planes with 2-DELTA-1/k(B)T(c1) = 4.1 and weak-coupling superconductivity with 2-DELTA-2/k(B)T(c2) = 2.1 along the CuO chains are inferred. A consistent explanation of the experiments is found by assuming an internal proximity effect between strongly and weakly superconducting layers.

引用

页码：5864 / 5867

页数：4

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