Tunneling and anisotropic charge transport properties of superconducting (110)-oriented YBa2Cu3O7 thin films

被引：71

作者：

Covington, M

Scheuerer, R

Bloom, K

Greene, LH

机构：

[1] Loomis Laboratory of Physics, University of Illinois at Urbana-Champaign, Urbana

来源：

APPLIED PHYSICS LETTERS | 1996年 / 68卷 / 12期

关键词：

D O I：

10.1063/1.115916

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have measured the tunneling conductance of YBa2Cu3O7/Pb planar tunnel junctions fabricated on superconducting (110)-oriented YBa2Cu3O7 thin films exhibiting zero-resistance superconducting transition temperatures (T-c's) between 88 and 89.5 K. The conductance is the same as we and other groups have measured on (100)- and (103)-oriented YBa2Cu3O7/Pb junctions and quantitatively different from c-axis tunneling. The ab-plane transport is comparable to that measured in (001)-oriented YBa2Cu3O7 thin films, and the transport anisotropy varies between 65 and 80 from 300 K to T-c, respectively. This anisotropy is higher than that previously measured in both (110)-oriented and c-axis aligned (100)-oriented films, but it is comparable to that measured in single crystals. (C) 1996 American Institute of Physics.

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页码：1717 / 1719

页数：3

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