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Schottky effect
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Schottky effect

physics
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Also known as: Schottky emission
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Article History
Key People:
Walter Schottky

Schottky effect, increase in the discharge of electrons from the surface of a heated material by application of an electric field that reduces the value of the energy required for electron emission. The minimum energy required for an electron to escape the surface of a specific material, called the work function, is supplied by the heat. A very weak electric field may be applied that simply sweeps the already emitted electrons away from the surface of the material. When the field is increased, a point is reached for quite moderate fields at which the value of the work function itself ...(100 of 170 words)

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