اعتماد درجة تاين السطح على درجة الحرارة باستخدام نظرية الالتصاق الكيميائي

For explaining the distance and temperature dependent charge transfer involved in surface processes dealing with particles leaving a surface, the Chemisorption theory (Anderson - Gerimly - Newns model) has been i.1sed. Treating the interaction of an alka li atom (Sodium) on a metal surface (Tungsten (I 12)) and introduce the temperature in the expression for effective charges (occupation numbers) of the adsorbed atom. Then the treatm ent was app lied to the positive surface ioni zation and shows that it occurs ~t distances slightly decreasing wi.th in creasing temperatures