Temperature Characteristics Studies of Nanocrystallite SrTiO3 Grain Boundaries by X-Ray Photoelectron Spectroscopy
LIU Zhen-xiang, GUO Jun, XIE Kan
Institute of Physics, State Key Laboratory of Surface Physics, Chinese Academy of Sciences, Beijing I00080
Temperature Characteristics Studies of Nanocrystallite SrTiO3 Grain Boundaries by X-Ray Photoelectron Spectroscopy
LIU Zhen-xiang;GUO Jun;XIE Kan
Institute of Physics, State Key Laboratory of Surface Physics, Chinese Academy of Sciences, Beijing I00080
关键词 ：
73.20.-r ,
73.20.At
Abstract ： Strontium titanate (SrTiO3 ) nanocrystallite thin films have been studied by x-ray photoelectron spectroscopy at different temperature. The surface oxygen concentration and Ti/Sr ratio increase with temperature rising up to 700K, and then decrease. New O1s and Ti 3d peaks appear at the low binding energy side of the corresponding main peaks, these new peaks have some different features from the corresponding main peaks, this phenomenon was not observed in single crystal SrTiO3 . A model is proposed to explain this interesting phenomenon.
Key words ：
73.20.-r
73.20.At
出版日期: 1997-12-01
:
73.20.-r
(Electron states at surfaces and interfaces)
73.20.At
(Surface states, band structure, electron density of states)
引用本文:
LIU Zhen-xiang;GUO Jun;XIE Kan. Temperature Characteristics Studies of Nanocrystallite SrTiO3 Grain Boundaries by X-Ray Photoelectron Spectroscopy[J]. 中国物理快报, 1997, 14(12): 928-931.
3 Grain Boundaries by X-Ray Photoelectron Spectroscopy. Chin. Phys. Lett., 1997, 14(12): 928-931.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1997/V14/I12/928
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