Singh, A. K.; O'Donnell, K. P.; Edwards, P. R.; Cameron, D.; Lorenz, K.; Kappers, M. J.; Boćkowski, M.; Yamaga, M.; Prakash, R.
(American Institute of Physics Inc., 2017-12-14)
Eu-doped GaN(Mg) exemplifies hysteretic photochromic switching between two configurations, Eu0 and Eu1(Mg), of the same photoluminescent defect. Using the above-bandgap excitation, we studied the temperature dependence of ...