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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.
Origin
named after J. B. Gunn (born 1928), British physicist, who discovered the effect in 1963
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for gunn-effect

Gunn effect

/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
Word Origin
C20: named after John Battiscombe Gunn (1928–2008), British physicist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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