The Lattice Compatibility Theory (LCT): An attempt to explain Urbach tailing patterns in copper-doped bismuth sillenites (BSO) and germanates (BGO)

摘要

In this study, we try to give an explanation to the spectacular Urbach tailing associated to some nano-scale lattice disordering which has been recorded in (BSO) and germanates (BGO) compounds. Some experimental and theoretical items are presented in order to give a possible understanding to the controversial Urbach tailing: the Lattice Compatibility Theory (LCT).