Temperature effect on the electronic structure of Nb:SrTiO3(100) surface

被引：1

作者：

张双红 ^{[1
,2
]}

王嘉鸥 ^{[2
]}

钱海杰 ^{[2
]}

吴蕊 ^{[2
]}

张念 ^{[2
]}

雷涛 ^{[2
]}

刘晨 ^{[2
]}

奎热西·伊布拉欣 ^{[2
]}

机构：

[1] School of Physics and Materials Science,Anhui University

[2] Institute of High Energy Physics,Chinese Academy of Sciences

来源：

Chinese Physics B | 2015年 / 02期

基金：

中国国家自然科学基金;

关键词：

strontium titanate; ultrahigh vacuum annealing; synchrotron radiation photoemission spectroscopy;

D O I：

暂无

中图分类号：

O572.322 [];

学科分类号：

摘要：

The effect of temperature on the electronic structure of Nb-doped SrTiO3(100) surface is investigated by highresolution synchrotron radiation photoemission spectroscopy.According to the x-ray photoemission spectroscopy(XPS)results,at an annealing temperature of less than 700 ℃,the adsorbed carbon and hydroxyl on the STO surface could be removed,to expose the fresh intrinsic surface with a constant ratio of Ti/O.It is obvious that the STO would be doped by Ca+impurities of bulks and O vacancies in the surface after annealing at 920 ℃ for one hour.

引用

页码：449 / 452

页数：4

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