Temperature-dependenceandexcitation-intensity-dependenceofphotoluminescencespectraforbothdisorderedandorderedGa0.52In0.48Paremeasured.Thedisorderedsampleischaractierizedbyitssinglepcakphotoluminescencespectrumwhichisexcitation-intensity.independentandhasdifferentactivationenergyatdifferenttemperatureregion.Theorderedsampleshowsdoublepeaks,theintensityofthehigh-energypeakhasananomalousincreasefirstlyandquenchesafterwards.Therelativehenomenaarereasonablyexplainedintermsoflatticeorderingandorientationsuperlatticemodel.
