Tunneling spectroscopy on underdoped La2-xSrxCuO4

被引：0

作者：

Kato, T. ^{[1
]}

Maruyama, T. ^{[1
]}

Noguchi, T. ^{[1
]}

Pyon, T. ^{[1
]}

Sakata, H. ^{[1
]}

机构：

[1] Tokyo Univ Sci, Dept Phys, Shinjuku Ku, 1-3 Kagurazaka, Tokyo 1628601, Japan

来源：

LOW TEMPERATURE PHYSICS, PTS A AND B | 2006年 / 850卷

关键词：

tunneling spectroscopy; La-based cuprates;

D O I：

暂无

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

We report the results of low-temperature tunneling spectroscopy on underdoped La1.94Sr0.06CuO4 single crystal with T-c = 14 K. The tunneling spectra have been obtained on the ab plane at 4.2 K indicating gap structure with the asymmetric V-shaped background. While we have observed the spectra with gap value A consistent with previous AR-PES data of the underdoped samples, a few spectra exhibit almost the same magnitude of A observed on the optimally doped sample in our former tunneling study. This result suggests the existence of the strong gap inhomogeneity in under doped La2-xSrxCuO4.

引用

页码：417 / +

页数：2

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