GaP life question ?

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GaP life question!!??

Hi, i have a question. I hope someone could help me... Thenks in advance!!!!

1.- I've read that the GaP life is sensitive to the temperature. Can you explain this in more detail???!! I mean, what happens at low and high temperature and why.

2.- I've been calculating DOS for the GaNP compound (where the composition goes from 0 to 1). How could be explained the "displacement" (appear and disappear) of peaks in both valence and conductions bands?? For example, in the attached graph, in -7 a peak appears when x goes to 1, and in -6 another peak disappears. The same in the bottom edge of the conduction band and at higher energies.

Thanks a lot
 

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