Sharp variations in the temperature dependence of optical reflectivity from AlN/GaN heterostructures
Article
Ursaki, VV, Tiginyanu, IM, Syrbu, NN et al. (2003). Sharp variations in the temperature dependence of optical reflectivity from AlN/GaN heterostructures
. 18(2), 10.1088/0268-1242/18/2/101
Ursaki, VV, Tiginyanu, IM, Syrbu, NN et al. (2003). Sharp variations in the temperature dependence of optical reflectivity from AlN/GaN heterostructures
. 18(2), 10.1088/0268-1242/18/2/101
Sharp variations in optical reflectivity were observed when cooling and heating AlN/GaN heterostructures on sapphire substrates between room temperature and 10 K. The reflectivity was found to decrease at a definite temperature Tk in the downward temperature run, and to recover at Tr > Tk in the subsequent upward temperature run. The temperature behaviour of reflectivity exhibits memory on the cooling-heating cycles previously subjected to samples.