Abstract:a), V. PAPATHEOU (a), and P. TSILIBIIC+RAS (b)The properties are discussed of an electron moving in one-dimensional periodic potential in the presence of homogeneous mutual perpendicular electric and magnetic fields. The perturbation energy is ahown, by two different methods, to be a periodic function of the k, quantum number, as required by Harper's conditions, and also a periodic function of the electric field. Furthermore the partition function is calculated to second order in perturbation. The free energy … Show more
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