Fluctuation conductivity in Li-doped YBa2Cu3O7−x |
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Authors: | V. Sandu S. Popa Elena Cimpoiasu |
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Affiliation: | 1. Institute of Atomic Physics and Institute of Physics and Technology of Materials, POB MG-7, Bucharest-Magurele, Romania
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Abstract: | The paraconductivity of Li-doped YBa2Cu3O7?x was measured. We have found that the character of the fluctuation changes as lithium content increases: instead of a crossover from 2D to 3D behavior (D is the dimensionality), as we have observed for a low doping level, a double crossover to the 2D percolative and 3D percolative regimes becomes manifest by increasing the lithium content. |
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