On electron hole symmetry and phase separation in someelectron doped cuprates
Abstract
We conclude from the analysis of the experimental NMR data for electron-doped cuprates that the Coulomb effects caused by doping lead to dynamical spatial phase separation that contributes to the nuclear spin relaxation. Remarkable, the 'infinite-layer' Sr 0.9La 0.1CuO 2 reveals unexpected electron-hole symmetry. Its 63Cu nuclear spin relaxation rate is the sum of a constant and the temperature dependent dissipation components, moreover, the latter turns out to be identical to the 1/ 63T1( T)-behavior in the stoichiometric hole-type compound YBa 2Cu 4O 8. Connection to fluctuations of a magnetic sub-phase is discussed.
- Publication:
-
Solid State Communications
- Pub Date:
- December 2005
- DOI:
- 10.1016/j.ssc.2005.09.019
- arXiv:
- arXiv:cond-mat/0509445
- Bibcode:
- 2005SSCom.136..523G
- Keywords:
-
- Condensed Matter - Superconductivity
- E-Print:
- 9 pages, 2 figures, to be published in "Solid State Communications"