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Electron Emission from Barium Strontium Titanate Ceramics
Author(s) -
Chen Shutao,
Dong Xianlin,
Zheng Shuxin,
Zhu Ziqiu,
Tang Chuanxiang
Publication year - 2006
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2006.01026.x
Subject(s) - materials science , dielectric , ferroelectricity , ceramic , strontium titanate , electron , strontium , barium , polarization (electrochemistry) , electrode , analytical chemistry (journal) , ferroelectric ceramics , barium titanate , mineralogy , optoelectronics , chemistry , composite material , physics , metallurgy , organic chemistry , chromatography , quantum mechanics
This paper focuses on understanding the influence of materials' properties on the ferroelectric electron emission. Ferroelectric ( x =1.0 and 0.8) and paraelectric ( x =0.67 and 0.5) compositions of barium strontium titanate (Ba x Sr (1− x ) TiO 3 ) system were chosen for study based on their different ferroelectric and dielectric properties. Similar emission current waveforms were obtained from four compositions with negative triggering voltage applied to the rear electrode of the samples. It was difficult to explain the experimental results using the spontaneous polarization‐switching model. The mechanism of electron emission from Ba x Sr (1− x ) TiO 3 ceramics was ascertained to surface plasma emission.