“negative effective mass amplifiers and generators”的概念、定义、翻译、参考文献-科学参考

单词	negative effective mass amplifiers and generators
释义	negative effective mass amplifiers and generators [`neg·ǝd·iv i¦fek·tiv ¦mas `am·plǝ´fī·ǝrz ǝn `jen·ǝ´rād·ǝrz] ^ELECTRONICS Class of solid-state devices for broad-band amplification and generation of electrical waves in the microwave region; these devices use the property of the effective masses of charge carriers in semiconductors becoming negative with sufficiently high kinetic energies.
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