Abstract
Existing data on 63Cu-nuclear spin relaxation reveal two independent relaxation processes: the one that is temperature independent we link to incommensurate peaks seen by neutrons, while the “universal” temperature dependent contribution coincides with 1/63T1(T) for two-chain YBCO 124. We argue that this new result substitutes for a “pseudogap” regime in a broad class of high-Tc cuprates and stems from the 1st order phase transition that starts well above the superconductivity Tc but becomes frustrated because of broken electroneutrality in the CuO2 plane.
Keywords
- superconductivity
- pseudogap
- magnetic properties
- NMR
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Gor’kov, L.P., Teitel’baum, G.B. (2005). Nuclear Spin Relaxation and Incommensurate Magnetism in Doped Cuprates. In: Ashkenazi, J., et al. New Challenges in Superconductivity: Experimental Advances and Emerging Theories. NATO Science Series II: Mathematics, Physics and Chemistry, vol 183. Springer, Dordrecht. https://doi.org/10.1007/1-4020-3085-1_10
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DOI: https://doi.org/10.1007/1-4020-3085-1_10
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