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Given a semiconductor band structure E-k diagram as below.. For point A, B, and C: (a)
compare the absolute value of electron (or hole) velocity; (b) comparing the effective mass.
(Assume all points are near k=0 and all bands have parabolic relation, E=ak²+b)
Conduction band
Point A
Point B
Heavy hole
Valance band
Point C
Light hole

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