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Unformatted text preview: and t ? 2. Suppose electrons have an E(k) relation given by E ( G k ) = m 2 c 4 + = 2 c 2 ( k x 2 + k y 2 + k z 2 ) Obtain an expression for the density of states D(E) in terms of the energy E, the volume V and constants like m, c and . = How would you write the energies of the subbands if the electrons are confined in a thin sheet of thickness W? Obtain an expression for the density of states of one of the subbands....
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- Fall '06