NORMAL ELECTRON-TUNNELING IN RAMP-TYPE YBA2CU3O7/PRBA2CU3O7/YBA2CU3O7 JUNCTIONS PREPARED BY LASER-ABLATION

被引：23

作者：

BECHERER, T ^{[1
]}

STOLZEL, C ^{[1
]}

ADRIAN, G ^{[1
]}

ADRIAN, H ^{[1
]}

机构：

[1] DAIMLER BENZ FORSCHUNGSINST,W-6000 FRANKFURT,GERMANY

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.47.14650

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ramp-type YBa2Cu3O7/PrBa2Cu3O7/YBa2Cu3O7 tunneling junctions have been prepared by laser ablation. The voltage dependence of the differential conductance is measured at different temperatures and magnetic fields. The junctions are thermally stable and can be cooled down to liquid-helium temperature and warmed up again to room temperature several times without quality loss. At temperatures below 35 K they show clear indications of an energy gap and in the same temperature range a very sharp zero-bias anomaly.

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页码：14650 / 14653

页数：4

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