) and G() [reference in text][a] Deviations form this succesful rule have been proposed by Bellaiche and Zunger [30]. In their model the large bondlength mismatch of the binary constituents should lead to short range ordering. Within the range of our data we do not observe any abrupt variations and effects of the above type are therefore expected to contribute in the large bowing parameter of the band gap energy [reference in text]
[b]
Note recent considerations have led to exchange the role of the electrooptic functions F() and G() [reference in text]
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