Low-temperature resistivity of single crystals YBa_2Cu_3O_{6+x} in the normal state

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dc.creatorGantmakher, V. F.
dc.creatorKozeeva, L. P.
dc.creatorLavrov, A. N.
dc.creatorPushin, D. A.
dc.creatorShovkun, D. V.
dc.creatorTsydynzhapov, G. E.
dc.creator.
dc.date1997-05-20
dc.date1998-10-19
dc.date.accessioned2026-07-07T09:02:41Z
dc.date.available2026-07-07T09:02:41Z
dc.descriptionA scan of the superconductor -- nonsuperconductor transformation in single crystals YBa_2Cu_3O_{6+x} (x about 0.37) was done in two alternative ways, namely, by applying the magnetic field and by reducing the hole concentration through the oxygen rearrangement. The in-plane normal-state resistivity ρ_{ab} obtained in both cases was quite similar; its temperature dependence can be fitted by logarithmic law in the temperature range of almost two decades. However, a different representation of the σ_{ab}=1/ρ_{ab} by a power law typical for a 3D-material near a metal -- insulator transition is also plausible. The vertical conductivity σ_c=1/ρ_c followed the power law and neither σ_c(T), nor ρ_c(T) could be fitted by log(T). It follows from the ρ_c measurements that the transformation at T=0 is split into two transitions: superconductor -- normal-metal and normal-metal -- insulator. In our samples, they are distanced in the oxygen content by Δx\approx0.025.
dc.description5 pages, LaTeX, 3 postscript figures. Figures were embedded into text; no contents were changed
dc.identifierhttps://arxiv.org/abs/cond-mat/9705197
dc.identifierhttp://arxiv.org/abs/cond-mat/9705197
dc.identifierPis'ma v ZhETF, 65, 834 (1997)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/148723
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleLow-temperature resistivity of single crystals YBa_2Cu_3O_{6+x} in the normal state
dc.typetext

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