A study of BGaN back-barriers for AlGaN/GaN HEMTs Jeramy R. Dickerson, Vinod Ravindran, Tarik Moudakir, Simon Gautier, Paul L. Voss and Abdallah Ougazzaden Eur. Phys. J. Appl. Phys., 60 3 (2012) 30101 Published online: 26 November 2012 DOI: 10.1051/epjap/2012120265