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Self focusing of field emitted electrons at an ellipsoidal tip
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10.1063/1.3462934
/content/aip/journal/apl/97/2/10.1063/1.3462934
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/2/10.1063/1.3462934
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Electron paths in the forbidden region and corresponding transmission coefficients for (a) and 10 (b). Only paths for which are shown.

Image of FIG. 2.
FIG. 2.

Decrease in emission area and increase in , with sharpness S of tip. is the angle onto which the electrons enter the inner surface of the forbidden zone and is the angle onto which they leave the forbidden zone.

Image of FIG. 3.
FIG. 3.

Electron beam width away from the tip (doted curve) for the surface as calculated by a) the 3D WKB method (solid line) and b) by straight Fowler–Nordheim paths (dashed line). The solid curve surrounding the tip denotes the boundary of the forbidden region.

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/content/aip/journal/apl/97/2/10.1063/1.3462934
2010-07-13
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Self focusing of field emitted electrons at an ellipsoidal tip
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/2/10.1063/1.3462934
10.1063/1.3462934
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