Copper sulfide nanowires of diameter of ∼1.2nm were grown within the crystal channels of Na-4 mica. These consist of both CuS and Cu2S strands. Electrical conduction over the temperature range of 130–300K was characterized by very low activation energies in the range of 0.008–0.004eV. The nanocomposites exhibit giant dielectric permittivity of ∼1617 which has been explained on the basis of one-dimensional metallic nanowires as predicted by the Gorkov-Eliashberg [Sov. Phys. JETP 21, 940 (1965)] and Rice-Bernasconi [Phys. Rev. Lett. 29, 113 (1972)] models.
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Mukherjee et al. (2006) studied this question.
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