Surface and interface study on MBE-grown Nd1.85Ce0.15CuO4 thin films by photoemission spectroscopy and tunneling spectroscopy

被引：1
|
作者：
Naito, M
Yamamoto, H
Sato, H
机构：
[1] NTT Basic Research Laboratories, 3-1 Morinosato-Wakamiya, Atsugi-shi
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1997年 / 282卷
关键词：
D O I：
10.1016/S0921-4534(97)00602-3
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Nd1.85Ce0.15CuO4 (NCCO) surfaces and Pb/NCCO interfaces have been extensively investigated by X-ray/ultraviolet spectroscopies and tunnel spectroscopy using films grown by MBE. The photoelectron spectra obtained in-situ on the surfaces of MBE-grown NCCO films are free from any dirt peak, and make feasible the first systematic investigation of the surface and interface of cuprates. The results indicate that the surface and interface electronic structures of NCCO are strongly influenced by oxygen non-stoichiometry, and that the precise control of oxygen content at the surface (interface) is essential to obtain the bulk-representative surface (interface).
引用
收藏
页码：965 / 966
页数：2
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