The influence of variable quantity of polarization on the current intensity of the electron emission from La-doped Pb(Zr, Sn, Ti)O3 ferroelectric cathode
Abstract:Ferroelectric cathodes exhibit huge potentials in high-power microwave tube electron beam source, panel display, and the propeller space navigation, due to their superior properties. The material properties of the ferroelectric cathode have been proved to have a significant influence on electron emission, which is indicated in recent research work. In the course of electron emission, the variation of polarization can be caused by non-shielded surface charge which is induced by high trigger voltage. A certain r… Show more
“…It is well known that, when positively charged oxygen vacancies (V Os ) attract electrons, the V Os act as electron trapping centers. [27][28][29][30] Consider that, in both LRS and HRS, the barrier height of the BLFO/LSMO junction is always higher than that of the Ag/BLFO junction. [31] Thus, the current in the negative bias part is mainly limited by the Ag/BLFO interface.…”
Gao Rong-Li(高荣礼) a)b) † , Fu Chun-Lin(符春林) a) , Cai Wei(蔡 苇) a) , Chen Gang(陈 刚) a) Deng Xiao-Ling(邓小玲) a) , Yang Huai-Wen(杨怀文) b) , Sun Ji-Rong(孙继荣) b) , and Shen Bao-Gen(沈保根) b)
“…It is well known that, when positively charged oxygen vacancies (V Os ) attract electrons, the V Os act as electron trapping centers. [27][28][29][30] Consider that, in both LRS and HRS, the barrier height of the BLFO/LSMO junction is always higher than that of the Ag/BLFO junction. [31] Thus, the current in the negative bias part is mainly limited by the Ag/BLFO interface.…”
Gao Rong-Li(高荣礼) a)b) † , Fu Chun-Lin(符春林) a) , Cai Wei(蔡 苇) a) , Chen Gang(陈 刚) a) Deng Xiao-Ling(邓小玲) a) , Yang Huai-Wen(杨怀文) b) , Sun Ji-Rong(孙继荣) b) , and Shen Bao-Gen(沈保根) b)
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