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Persistent current in one-dimensional non-superconducting mesoscopic ringsthreaded by a slowly varying magnetic flux $\phi$ is studied based on thetight-binding model. The behavior of the persistent current is discussed inthree aspects: (a) single hopping impurity, (b) in-plane electric field and (c)in presence of some foreign atoms.Comment: 12 pages, 8 figure

international journal of modern physics b/international journal of modern physics b

PERSISTENT CURRENT IN ONE-DIMENSIONAL NON-SUPERCONDUCTING MESOSCOPIC RINGS: EFFECTS OF SINGLE HOPPING IMPURITY, IN-PLANE ELECTRIC FIELD AND FOREIGN ATOMS