Nuclear spin relaxation and incommensurate magnetism in doped cuprates
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.
- Publication:
-
arXiv e-prints
- Pub Date:
- February 2004
- DOI:
- 10.48550/arXiv.cond-mat/0402589
- arXiv:
- arXiv:cond-mat/0402589
- Bibcode:
- 2004cond.mat..2589G
- Keywords:
-
- Condensed Matter - Superconductivity;
- Condensed Matter - Strongly Correlated Electrons
- E-Print:
- Contribution to "2004 University of Miami Workshop on Unconventional Superconductivity", Miami, January 2004