A model for photoemission from prepoled ferroelectric ceramics
- 2 February 1998
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 72 (5) , 522-524
- https://doi.org/10.1063/1.120808
Abstract
The emission of electrons from a prepoled ferroelectric material when shined with a laser light pulse cannot be interpreted as a normal photoemission process, nor due to polarization switching. Another picture is proposed for the emission: in a prepoled ferroelectric disk a very narrow layer of electrons is set at the surface. The high-power laser pulse is absorbed by the electrons and an Auger process occurs. Hence, part of the hot electrons acquire enough energy to tunnel and/or to overcome the potential barrier and exit the crystal.Keywords
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