Gunn-effect
[guhn] /gʌn/
noun, Physics, Electronics.
1.
the onset of microwave oscillations in a thin slice of a semiconductor when a voltage exceeding a given value is applied across the slice.
/ɡʌn/
noun
1.
a phenomenon observed in some semiconductors in which a steady electric field of magnitude greater than a threshold value generates electrical oscillations with microwave frequencies
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