Effect of temperature on 2D terahertz plasmons and electron effective mass in AlGaN/GaN
Abstract
The effect of temperature on two-dimensional plasmons in large-area AlGaN/GaN plasmonic crystals was studied experimentally. With the temperature increase the resonant plasmon frequency redshifts due to the strong temperature dependence of the electron effective mass and electron concentration under open to the environment surface of AlGaN. The temperature dependence of electron effective mass is confirmed by the cyclotron resonance measurements.
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