Localization of Electrons under Strong Magnetic Fields in a Two-Dimensional System

摘要: Using an effective Hamiltonian to describe the dynamics of center coordinates cyclotron motion, structure tail states Landau subbands is discussed. Eigenvalue problem explicitly solved in case a single Gaussian-type potential. The eigenfunctions do not depend on range potential while eigenvalues do. contribution dynamical conductivity shown be proportional D ( E F ) 2 ω In low frequency limit with density at Fermi energy .