SUPERCONDUCTING GAP OBSERVED BY THE ATOMIC-SITE TUNNELING SPECTROSCOPY ON YBCO AND BSCCO

被引：14

作者：

KITAZAWA, K

NANTOH, M

HEIKE, S

TAKAGI, A

IKUTA, H

HASEGAWA, T

机构：

[1] Department of Industrial Chemistry, University of Tokyo, Tokyo

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1993年 / 209卷 / 1-3期

关键词：

D O I：

10.1016/0921-4534(93)90861-J

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Atomic site tunneling spectroscopy has been applied to bulk single crystal of BSCCO and laser-ablated thin film of YBCO. The tunneling spectrum on the cleaved surface of BSCCO showed both semiconducting and superconducting behaviors, depending on the tip-sample distance. This observation is consistent with the quasi two-dimensional layered model. In both systems, clear superconducting gap structures with quite low zero bias conductances were observed, suggesting the s-wave like symmetry of the order parameter.

引用

页码：23 / 26

页数：4

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