Anomalous electron emission from LiNbO3 crystals

V. D. Kugel, Gil Rosenman

Research output: Contribution to journalArticlepeer-review


Our experimental data show that a rather thin layer with inverted polarization at the +c-face strongly suppresses the pyroelectrically induced electron emission from LiNbO3 crystals. We assume that the microscopic electric field of pyroelectric positive surface charges increases a potential barrier to polarons moving toward the vacuum. The pyroelectrically induced electron emission provides a novel method of detecting thin surface layers with inverted polarization.

Original languageEnglish
Pages (from-to)2813-2815
Number of pages3
JournalApplied Physics Letters
Issue number20
StatePublished - 1996


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