Simulation and Experimental Investigations of an Efficient and Stable Ferroelectric Cathode

ZHANG Qing-Hui; ZHENG Shu-Xin; TANG Chuan-Xiang; LI Quan-Feng

Chinese Physics C> 2006, Vol. 30> Issue(1) : 71-74

Simulation and Experimental Investigations of an Efficient and Stable Ferroelectric Cathode

Department of Engineering Physics,Tsinghua University,Beijing 100084,China

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Abstract：
The mechanism of electron emission from ferroelectric cathode is introduced.Distribution of the applied static field in ferroelectric cathodes is simulated by MAFIA codes. It is shown that the structure of front electrode can obviously influence the static field at the triple-point of ferroelectric cathode.A ferroelectric cathode with isolated electrodes can attain stronger multiplicative field at the triple-point, which may be helpful in getting efficient and stable electron emission. In the recent experiments, we have already got stable electron emission over 100A from a PLZT8/65/35 cathode with isolated electrodes.

References

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ZHANG Qing-Hui, ZHENG Shu-Xin, TANG Chuan-Xiang and LI Quan-Feng. Simulation and Experimental Investigations of an Efficient and Stable Ferroelectric Cathode[J]. Chinese Physics C, 2006, 30(1): 71-74.

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Received: 2005-03-09
Revised: 2005-04-06

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