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![]() | Wu, Yong-Shi | Diophantine equation for the three-dimensional quantum Hall effect | When the Fermi level lies in a gap, the Hall conductivity of three-dimensional electrons in a periodic potential is expressed in a topologically invariant form with a set of three integers. If the magnetic fluxes through the three independent areas of the periodic lattice are rational numbers, one... | Hall conductivity; Periodic potentials | 1992-06 |