Question: 1. Solid State physics warm-up Part (i) A given semiconductor has a conduction band described by E_ (k)= E-~E, cos(ka) and a valence band described

1. Solid State physics warm-up Part (i) A given semiconductor has a conduction band described by E_ (k)= E-~E, cos(ka) and a valence band described by E (k) =E,E,sin? (ka)where E,>0fori=1234,and E,> E,, E;
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