TY - JOUR T1 - Characterization of Radiation Damage by Deposition of GaN on GaAs AU - , N. Moussaoui AU - , M. Bouafia AU - , Dj. Boubetra JO - Journal of Engineering and Applied Sciences VL - 2 IS - 9 SP - 1440 EP - 1442 PY - 2007 DA - 2001/08/19 SN - 1816-949x DO - jeasci.2007.1440.1442 UR - https://makhillpublications.co/view-article.php?doi=jeasci.2007.1440.1442 KW - Physical radiation effects KW -ions KW -argon ions KW -ellipsometry KW -semiconductors KW -gallium arsenide KW -gallium nitride KW -amorphization AB - Radiation damage by reactive magnetron sputtering deposition at low energies is connected with marked changes of optical constants of semiconductors. It will be shown, that using ellipsometry and a special model can provide informations about relevant parameter of the amorphization process of GaN/GaAS layer System. The procedure allows the quantification of the radiation damage in the nanometer range and the refractive index of the formed amorphous GaAs. ER -