gunn effect

How does the Gunn Effect work?

The Gunn Effect operates based on the existence of multiple energy valleys within the conduction band of certain semiconductors. When an electric field is applied, electrons gain energy and can transfer from a lower-energy valley to a higher-energy valley. This transfer causes a decrease in electron mobility, leading to the formation of localized regions with high electric fields, called domains. As these domains move through the material, they generate microwave frequencies.

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