…When a strong electric field of several kV/cm is applied to n-type gallium arsenide (GaAs) or indium phosphide (InP), an oscillation phenomenon occurs in which the frequency is approximately equal to the inverse of the transit time of electrons in the diode. This phenomenon was discovered by JB Gunn in 1963 and is called the Gunn effect. The physical mechanism of oscillation is that electrons in a low-energy energy band with a small effective mass transition to a high-energy energy band with a large effective mass, as predicted by BK Ridley, TB Watkins, and C. Hilsum, so it is also called an electronic transition device. … *Some of the terminology that mentions "Gunn, JB" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…n型のヒ化ガリウムGaAsやリン化インジウムInPなどに,数kV/cm程度の強い電界を加えると,周波数がダイオード中の電子の走行時間の逆数にほぼ等しい発振現象を生ずる。この現象は1963年にガンJ.B.Gunnにより発見され,ガン効果と呼ばれる。発振の物理的機構はリドリーB.K.Ridley,ワトキンスT.B.Watkins,ヒルサムC.Hilsumにより予測されていたように,低エネルギーの有効質量の小さいエネルギー帯中の電子が,高エネルギーの有効質量の大きいエネルギー帯に遷移することによるので,電子遷移デバイスともいう。… ※「Gunn,J.B.」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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