Effect of the light on microhardness of metalsu

摘要

Photomechanical effect (PME) of the metal microhardness decreasing under white light exposure has been investigated. Mechanism of the effect is discussed in terms of the existence of bonding and antibonding zones in metals. It is shown that the less part of the thermal-induced electrons is being in antibonding zone as compared with light-induced ones, the larger PME value is observed in metals.