Advances in Condensed Matter Physics / 2013 / Article / Fig 3

Research Article

Aging Effect on Electrical Conductivity of Pure and Al-Doped YBa2Cu3O7−δ Single Crystals with a Given Topology of Planar Defects

Figure 3

The temperature dependence of the excess conductivity in the plane of the single crystals (a) and (b) before and after long aging in air, in (main panels) and coordinates (insets). The dashed straight lines are fits by (2). In the insets, the solid straight lines are linear fits with slopes (3D regime) and (2D regime). The arrows show the 3D-2D crossover point. The numbering of the curves is the same as in Figure 2.

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