On electron-hole symmetry and phase separation in some electron 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" Sr0.9La0.1CuO2 reveals unexpected electron-hole symmetry. Its 63^Cu 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 1/63^T_1(T)-behavior in the stoichiometric hole-type compound YBa2Cu4O8. Connection to fluctuations of a magnetic sub-phase is discussed.

9 pages, 2 figures, to be published in "Solid State Communications"

References in corpus (10)

• Doping dependence of an n-type cuprate superconductor investigated by ARPES
• Nodal metallic behavior of lightly-doped La${}_{2-x}$Sr${}_x$CuO${}_4$
• Commensurate spin dynamics in the superconducting state of an electron-doped cuprate superconductor
• New class of T-prime-structure cuprate superconductors
• Phase Decomposition and Chemical Inhomogeneity in Nd2-xCexCuO4
• Spin Correlations and Magnetic Order in Nonsuperconducting Nd_{2-x}Ce_xCuO_{4\pmδ}
• Fermi-liquid ground state in n-type copper-oxide superconductor Pr0.91Ce0.09LaCuO4-y
• Electronic inhomogeneity and competing phases in electron-doped superconducting Pr0.88LaCe0.12CuO4
• Superconductivity and Spin Fluctuations in the Electron-Doped Infinitely-Layered High Tc Superconductor Sr${}_0.9$La${}_0.1$CuO${}_2$ (Tc=42K)
• Magnetic Field Effect on Static Antiferromagnetism in Electron-Doped Superconductor Pr${}_{1-x}$LaCe${}_x$CuO${}_4$ ($x$=0.11 and 0.15)