Charge-Inhomogeneity doping relations in YBCO detected by Angle Dependent Nuclear Quadrupole Resonance

Abstract

The origin of charge inhomogeneity in YBa_{2}Cu_{3}O_{y} is investigated using a new experimental method designed to determine the nuclear quadrupole resonance (NQR) asymmetry parameter eta for very wide NQR lines at different positions on the line. The method is based on the measurement of the echo intensity as a function of the angle between the radio frequency field H1 and the principal axis of the electric field gradient. Static charge inhomogeneity deduced from eta>0 are found in this compound, but only in conjunction with oxygen deficiency. This limits considerably the possible forms of charge inhomogeneity in bulk YBa_{2}Cu_{3}O_{y}.

To be published in Phys. Rev. B; Revised version with a correction to figure 2

References in corpus (10)

• How to detect fluctuating order in the high-temperature superconductors
• Imaging the granular structure of high-Tc superconductivity in underdoped Bi2Sr2CaCu2O8+x
• Spin-Gap Proximity Effect Mechanism of High Temperature Superconductivity
• Imaging Quasiparticle Interference in Bi2Sr2CaCu2O8+d
• Local Ordering in the Pseudogap State of the High-T${}_c$ Superconductor Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• (63)Cu NQR Evidence for Spatial Variation of Hole Concentration in La(2-x)Sr(x)CuO(4)
• Evidence for a generic novel quantum transition in high-Tc cuprates
• Nanoscopic coexistence of magnetism and superconductivity in YBa2Cu3O6+x detected by MuSR
• Planar Cu and O hole densities in high-Tc cuprates determined with NMR
• Pure nuclear quadrupole resonance determination of the electric field gradient asymmetry for broad lines (and application to YBa2Cu3O7)

Cited by in corpus (9)

• An Intrinsic Bond-Centered Electronic Glass with Unidirectional Domains in Underdoped Cuprates
• Lattice symmetry breaking in cuprate superconductors: Stripes, nematics, and superconductivity
• New Perspective on the Phase Diagram of Cuprate High-Temperature Superconductors
• Bulk and surface low-energy excitations in YBa2Cu3O7-d studied by high-resolution angle-resolved photoemission spectroscopy
• Muon Spin Rotation Measurements of Heterogeneous Field Response in Overdoped La2-xSrxCuO4
• Nutation versus angular dependent NQR spectroscopy and the impact of underdoping on charge inhomogeneities in YBa${}_2$Cu${}_3$O${}_y$
• Interpretation of low-temperature nuclear quadrupole resonance spectra in La(1.875)Ba(0.125)CuO(4) in terms of two-dimensional spin superstructure
• Local transformation of the Electronic Structure and Generation of Free Carriers in Cuprates and Ferropnictides under Heterovalent and Isovalent Doping
• Electron-phonon coupling in a two-dimensional inhomogeneous electron gas: consequences for surface spectral properties