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cond-mat1994
Is Hall Conductance in Hall Bar Geometry a Topological Invariant?
K. Ishikawa, N. Maeda, K. Tadaki
A deep connection between the Hall conductance in realistic situation and a topological invariant is pointed out based on von-Neumann lattice representation in which Landau level e…
cond-mat1994★ 14 cited
Magnetic von-Neumann lattice for two-dimensional electrons in the magnetic field
K. Ishikawa, N. Maeda, K. Tadaki
One-particle eigenstates and eigenvalues of two-dimensional electrons in the strong magnetic field with short range impurity and impurities, cosine potential, boundary potential, a…