A model for photoemission from prepoled ferroelectric ceramics

被引：7

作者：

Benedek, G

Boscolo, I

机构：

[1] Ist Nazl Fis Nucl, I-20133 Milan, Italy

[2] Univ Milan, Dipartimento Fis, INFM, I-20133 Milan, Italy

来源：

APPLIED PHYSICS LETTERS | 1998年 / 72卷 / 05期

关键词：

D O I：

10.1063/1.120808

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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. (C) 1998 American Institute of Physics.

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页码：522 / 524

页数：3

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