Figures of merit for ferroelectric electron emission cathodes

被引：17
作者：
Shur, D
Rosenman, G
机构：
[1] Tel-Aviv University, Faculty of Engineering, Dept. Elec. Eng.- Phys. Electronics
来源：
JOURNAL OF APPLIED PHYSICS | 1996年 / 80卷 / 06期
关键词：
D O I：
10.1063/1.363213
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Pyroelectrically induced electron emission from different ferroelectric single crystals and ceramics is studied. It is observed that (Pb,La)(Zr,Ti)O-3 ceramics generate rather low ferroelectric electron emission (FEE) current compared with single crystals such as triglycine sulphate and lithium niobate. Figures of merit for FEE cathodes in the pyroelectric excitation mode are derived. It is shown that a physical origin and consequently figures of merit are quite different for FEE cathodes and conventional field electron cathodes. (C) 1996 American Institute of Physics.
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页码：3445 / 3450
页数：6
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