Scanning tunneling microscopy and spectroscopy on La2-xSrxCuO4

被引：14

作者：

Kato, T ^{[1
]}

Morimoto, H ^{[1
]}

Katagiri, A ^{[1
]}

Okitsu, S ^{[1
]}

Sakata, H ^{[1
]}

机构：

[1] Sci Univ Tokyo, Dept Phys, Shinjuku Ku, Tokyo 1628601, Japan

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2003年 / 392卷

关键词：

scanning tunneling microscopy; tunneling spectroscopy; La2-xSrxCuO4;

D O I：

10.1016/S0921-4534(03)01076-1

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Scanning tunneling microscopy and spectroscopy (STM/STS) measurements have been performed on the nearly optimally doped La1.84Sr0.16CuO4 (LSCO) single crystal with T-c = 39 K. The surface topography has been observed for the first time and revealed the step structures on the c-face whose edge was parallel to the a(HTT)-axis (Cu -O bonding direction). The value of the superconducting gap Delta has been distributed around 8 meV, which corresponds to 2Delta/k(B)T(c) approximate to 4.8. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：221 / 223

页数：3

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