Electron emission from La-Doped lead zirconate stannate titanate antiferroelectric ceramic under fast electric field pulses

Peculiarity of Low Density Plasma-Assisted Charge Emission Produced at LATGS Crystal Surface

“…About twenty years later, electron current with density of the order of a few Acm −2 was produced on PLZT ceramic samples subjected to the short (10 −7 s) negative HV pulse (Gundel et al [12]). During the last two decades, mainly PZT-and BaTiO 3 -based ceramic samples with selected composition and polarization state [13][14][15][16][17][18][19][20][21], and even TGS single crystals [22] were examined under different experimental conditions because of their possible application as cold cathodes in different areas of technology, for example in vacuum electronics, accelerators, plasma sources, lasers, triggering systems, etc. It should be stated that for the most of strong electron emission experiments, the sample studied were subjected to the pulse (10 −7 − 10 −6 s) electric field exceeding 10 4 V/cm and only in some experiments the pulse duration was as long as 10 −3 s [22].…”