Schottky barrier formation at the Au to rare earth doped GaN thin film interfaceS.R. McHale, J.W. McClory, J.C. Petrosky, J. Wu, A. Rivera, R. Palai, Ya.B. Losovyj and P.A. DowbenEur. Phys. J. Appl. Phys., 55 3 (2011) 31301DOI: https://doi.org/10.1051/epjap/2011110082