Electronic Structure of SrTiO3 Nanocrystallite Thin Film at High Temperature
LIU Zhen-xiang, GUO Jun, XIE Kan
Institute of Physics, State Key Laboratory of Surface Physics, Chinese Academy of Sciences, Beijing 100080
Electronic Structure of SrTiO3 Nanocrystallite Thin Film at High Temperature
LIU Zhen-xiang;GUO Jun;XIE Kan
Institute of Physics, State Key Laboratory of Surface Physics, Chinese Academy of Sciences, Beijing 100080
关键词 ：
73.20.-r ,
79.60.-i ,
73.20.At
Abstract ： The electronic structure and surface composition of SrTiO3 nanocrystallite thin film at different temperature were studied by ultraviolet photoelectron spectroscopy and x-ray photoelectron spectroscopy, respectively. The electronic structure strongly depends on temperature and at high temperature is similar to that of single crystal. As the sample temperature falling down from high temperature, the valence band spectra of SrTiO3 nanocrystallite thin film shift to high binding energy and become weak rapidly; an opposite process was observed when temperature rising up. This interesting phenomenon was explained on the basis of the thermodynamic equilibrium process near grain boundaries that leads to redistribution of anions and cations and forming charged grain boundaries.
Key words ：
73.20.-r
79.60.-i
73.20.At
出版日期: 1997-06-01
:
73.20.-r
(Electron states at surfaces and interfaces)
79.60.-i
(Photoemission and photoelectron spectra)
73.20.At
(Surface states, band structure, electron density of states)
引用本文:
LIU Zhen-xiang;GUO Jun;XIE Kan. Electronic Structure of SrTiO3 Nanocrystallite Thin Film at High Temperature[J]. 中国物理快报, 1997, 14(6): 457-459.
3 Nanocrystallite Thin Film at High Temperature. Chin. Phys. Lett., 1997, 14(6): 457-459.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1997/V14/I6/457
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1997, Vol. 14 
