Ultrathin MBE-Grown AlN/GaN HEMTs with record high current densities


III-V nitride-based HEMT technology has made rapid progress over the last decade. Benefiting from the extremely high polarization charge, in this work, we demonstrate record high DC current density (2.9 A/mm) and very high extrinsic transconductance (~430 mS/mm) AIN/GaN HEMTs. 


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