電子在徐變混成晶體或合金中的等效韓彌爾頓理論

Abstract

Using unitary transformation method to remove the interband matrix elements successively, we can formulate the problem of an electron moving in a periodic potential with slowly varying envelop. The effective quantum mechanical Hamiltonian operator ε(p→,λ(r→)) is derived and compared with that obtained by kq-representation method. And the hermitianized procedure of the effective Hamiltonian is given.