Magnetoconductivity due to quantum interference in strongly underdoped YBa2Cu3Ox
نویسندگان
چکیده
We report magnetoconductivity measurements on YBa2Cu3Ox (x56.25 and 6.36) single crystals. Our main result is that both the in-plane Dsab and out-of-plane Dsc magnetoconductivities exhibit the field dependence characteristic of ‘‘two-dimensional’’ quantum interference in applied magnetic fields Huuc . Namely, Dsc ,ab }ln H/H0.0, with Dsc /sc substantially greater than Dsab /sab . We interpret this result as an evidence of interlayer incoherence in these crystals, so that the phase-coherent trajectories are mostly confined to one bilayer.
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