High energy electron emission phenomenon from ferroelectric crystals
- 1 February 1992
- journal article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 126 (1) , 305-309
- https://doi.org/10.1080/00150199208227077
Abstract
The energy of electrons We emitted by ferroelectric crystals is calculated and measured. Its magnitude for LiTaO3 under pyroelectric effect condition reaches 120 keV without any extraction field and may be changed greatly by crystal thickness variation or by changing the distance between the emitting crystal surface and the collector. It is shown that the escaping electrons are accelerated in the field of unscreened pyroelectric charge and the electron energy is determined by the crystal surface potential. An artificial β-source based on this phenomenon is discussed.Keywords
This publication has 9 references indexed in Scilit:
- Depolarization screening by electron emission from a ferroelectricFerroelectrics, 1991
- Time-dependent electron emission from ferroelectrics by external pulsed electric fieldsJournal of Applied Physics, 1991
- Electron emission at switching of ferroelectricsFerroelectrics, 1990
- Thermally Stimulated Electron Emission from Triglycine Sulphate Crystals with Well-Defined Initial Macroscopic PolarizationPhysica Status Solidi (a), 1990
- New Aspects of Electron Emission from Virgin TGS Single CrystalsPhysica Status Solidi (a), 1986
- Exoemission of PyroelectricsPhysica Status Solidi (b), 1983
- The photogalvanic effect in media lacking a center of symmetrySoviet Physics Uspekhi, 1980
- Emission of high-energy free charge carriers in vacuum as a symptom of pyroelectric propertiesFerroelectrics, 1978
- Thermally stimulated field emission from pyroelectric LiNbO3Applied Physics Letters, 1974