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：
ChinesePhysicsB | 2015年 / 24卷 / 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：
070202 ;
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
收藏
页码：449 / 452
页数：4
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