Nuclear spin relaxation and incommensurate magnetism in doped cuprates
Superconductivity
2007-05-23 v1 Strongly Correlated Electrons
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}^T_{1}(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 CuO_2 plane.
Cite
@article{arxiv.cond-mat/0402589,
title = {Nuclear spin relaxation and incommensurate magnetism in doped cuprates},
author = {L. P. Gor'kov and G. B. Teitel'baum},
journal= {arXiv preprint arXiv:cond-mat/0402589},
year = {2007}
}
Comments
Contribution to "2004 University of Miami Workshop on Unconventional Superconductivity", Miami, January 2004; 9 pages, 3 figures