Observation of the pre-explosion state and of the initial moment of an explosion of a field emission center in a field emission microscope.

Autor: Batrakov, A. V., Popov, S. A., Proskurovskiı, D. I.
Předmět:
Zdroj: JETP Letters; 2/25/98, Vol. 67 Issue 4, p299, 6p
Abstrakt: Never-before-observed emission images corresponding to a transition from intense field emission to explosive electron emission are obtained in a Müller field emission microscope with short (∼2 ns) high-voltage pulses. These images are much brighter than ordinary field emission images. Moreover, the images have a characteristic multi-brightness structure with ring-shaped frames around regions of different brightness. Analysis of the experimental data points to a field emission nature of these images. The appearance of such emission images can be explained by emission from a liquid phase which arises immediately prior to the explosion of a microemitter. © 1998 American Institute of Physics. [ABSTRACT FROM AUTHOR]
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