Exact diagonalization calculations of hole binding around Ni impurities in Ni-substituted cuprate superconductors
Kenji Tsutsui, Atsushi Toyama, Takami Tohyama, Sadamichi Maekawa
DOI 10.1103/PhysRevB.80.224519 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We examine the influence of Ni impurity in cuprates on the distribution of hole carriers by performing numerically exact diagonalization calculations for a model consisting of Cu 3d, Ni 3d, and O 2p orbitals. Using realistic parameters for the system, we find that a hole is predominantly bound to O 2p orbitals around the Ni impurity forming the Zhang-Rice doublet. This imposes strong restrictions on modeling Ni-substituted cuprates. We propose a resonant inelastic x-ray scattering experiment for Ni K edge to confirm hole binding around the Ni impurity.
Similar papers
Doping evolution of the oxygen K-edge x-ray absorption spectra of cuprate superconductors using a three-orbital Hubbard model
similarity 0.90C.-C. Chen et al.
Source status unknown — claims are unverified
Hole excitation spectra in cuprate superconductors: A comparative study of single- and multiple-band strong-coupling theories
similarity 0.90C.-H. Chen et al.
Source status unknown — claims are unverified
Tuning the in-plane electron behavior in high-Tc cuprate superconductors via apical atoms: A first-principles Wannier-states analysis
similarity 0.90Wei-Guo Yin & Wei Ku
Source status unknown — claims are unverified
Acoustic plasmons and conducting carriers in hole-doped cuprate superconductors
similarity 0.90A. Singh et al.
Source status unknown — claims are unverified
Hole-trapping by Ni, Kondo effect and electronic phase diagram in non-superconducting Ni-substituted La2-xSrxCu1-yNiyO4
similarity 0.89K. Suzuki et al. · 2010 · arXiv:1007.4659
Source status unknown — claims are unverified
Mechanism of dx2−y2-wave superconductivity based on hole-doping-induced spin texture in high Tc cuprates
similarity 0.89T. Morinari
Source status unknown — claims are unverified