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Temperature dependence of the resistivity for single crystals K1 (1) and K2 (2); the arrows indicate points of deviation from the linear dependence; the inset shows a schematic illustration of the bridge used in the resistive studies; b,c—transitions to the superconducting state for the same crystals, as obtained from the resistive (b) and magnetic (c) measurements; d—temperature dependence of in the region of the superconducting transition of two samples.
Temperature dependence of the excess conductivity in the plane for single crystals K1 (1) and K2 (2). Approximation of the experimental curves by Eq. (3) is shown by the dashed curves, and in inset “b” by straight lines with slope (3D regime) and (2D regime). The arrows indicate the points of the 2D-3D crossover.
Parameters of the experimetal samples.
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