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The purpose of this paper is to investigate theoretically and experimentally possible interactions between the surface plasma wave in drifting carriers in 2D electron gas (2DEG) and electromagnetic space harmonics in a GaAs interdigital-gated HEMT device from microwave to THz frequencies
The GaAs(001) surface exhibits various surface phases depending on the surface temperature and As:Ga flux ratio during growth by molecular beam epitaxy. Using scanning tunneling microscopy and first principles total energy calculation, we carried out a systematic study of various Ga-rich phases, such as the 4 2 and 4 6 phases, utilizing migration enhanced epitaxy. Based on this investigation,...
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