Mg-doping and free-hole properties of hot-wall MOCVD GaN. - Papamichail, A.; Kakanakova-Georgieva, A.; Sveinbjörnsson, E. Ö.; Persson, A. R.; Hult, B.; Rorsman, N.; Stanishev, V.; Le, S. P.; Persson, P. O. Å.; Nawaz, M.; Chen, J. T.; Paskov, P. P.; et al. (Journal of Applied Physics, 2022)