Abstract
Electron crystallization due to sufficiently strong Coulomb repulsions leads to a model of electrons oscillating about lattice sites in harmonic potentials. We have studied the orbital diamagnetism of such a localized Wigner oscillator in an applied magnetic field of arbitrary strength. The two contributions from orbital angular momentum and from Langevin-Pauli behaviour are separately calculated using Feynman's theorem. Possible relevance to the melting curve of the Wigner crystals in a magnetic field is pointed out.
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