Copious electron emission from triglycine sulfate ferroelectric crystals

V. D. Kugel, G. Rosenman, D. Shur, Ya E. Krasik

Research output: Contribution to journalArticlepeer-review


It is shown experimentally that the electron charge emitted from triglycine sulfate pulse ferroelectric cathodes can be as large as 129 μC/cm 2. This charge considerably exceeds the measured value of spontaneous polarization, Ps=2.8 μC/cm2. A bipolar voltage is found to facilitate the appearance of the electron emission. It is proposed that the source of the emission current is the plasma of uncompleted surface discharges. This plasma is initiated at the metal-vacuum-dielectric triple points both by the field electron emission and the electron emission stimulated by polarization switching.

Original languageEnglish
Pages (from-to)2248-2252
Number of pages5
JournalJournal of Applied Physics
Issue number4
StatePublished - 1995


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