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

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).

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► Proposing a complete, new and original explanation to the Urbach tailing controversy.
► Presenting an original combination of several referred and established characterization means.
► Outlining new Lattice Compatibility Theory (LCT).