Nuclear spin relaxation and incommensurate magnetism in doped cuprates

2004/02/24 by L. P. Gor'kov, Gor'kov, L. P., G. B. Teitel'baum +1
Physics and Astronomy · #FOS: Physical sciences #Strongly Correlated Electrons (cond-mat.str-el) #Superconductivity (cond-mat.supr-con) #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.48550/arxiv.cond-mat/0402589

Contribution to "2004 University of Miami Workshop on Unconventional Superconductivity", Miami, January 2004; 9 pages, 3 figures

arxiv created 2004/02/24 · arxiv updated 2009/12/01

Abstract

Existing data on Cu-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 1/63^T₁(T) for two-chain YBCO 124. We argue that this new result substitutes for a ''pseudogap'' regime in a broad class of high-T_c cuprates and stems from the 1st order phase transition that starts well above the superconductivity T_c but becomes frustrated because of broken electroneutrality in the CuO₂ plane.

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