Differences Between Hole and Electron Doping of a Two-Leg CuO Ladder

Abstract

Here we report results of a density-matrix-renormalization-group (DMRG) calculation of the charge, spin, and pairing properties of a two-leg CuO Hubbard ladder. The outer oxygen atoms as well as the rung and leg oxygen atoms are included along with near-neighbor and oxygen-hopping matrix elements. This system allows us to study the effects of hole and electron doping on a system which is a charge transfer insulator at a filling of one hole per Cu and exhibits power law, d-wave-like pairing correlations when doped. In particular, we focus on the differences between doping with holes or electrons.

REVTEX 4, 10 pages, 13 figures

References in corpus (2)

• Qualitative understanding of the sign of t' asymmetry in the extended t-J Model and relevance for pairing properties
• Spin dynamics of Sr_14Cu_24O_41 two-leg ladder studied by Raman spectroscopy

Cited by in corpus (20)

• The density-matrix renormalization group
• New Trends in Density Matrix Renormalization
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• Ground-state phase diagram of the three-band Hubbard model from density matrix embedding theory
• Doping Asymmetry of a 3-orbital CuO${}_2$ Hubbard Model
• Experimental observation of the crystallization of a paired holon state
• Optical characterization of platinum-halide ladder compounds
• Magnetic ground state of coupled edge-sharing CuO_2 spin-chains
• Anomalous behaviors of the charge and spin degrees of freedom in the CuO double chains of PrBa${}_2$Cu${}_4$O${}_8$
• Origin of charge density wave in the coupled spin ladders in Sr${}_{14-x}$Ca${}_x$Cu${}_{24}$O${}_{41}$
• Competing ground states of metal-halide ladders
• Phase diagram of the three band half-filled Cu-O two-leg ladder
• Absence of Luther-Emery Superconducting Phase in the Three-Band Model for Cuprate Ladders
• Near degeneracy and pseudo Jahn-Teller effects in mixed-valence ladders: the phase transition in NaV${}_2$O${}_5$
• Doping asymmetry in the three-band Hamiltonian for cuprate ladders: failure of the standard model of superconductivity in cuprates
• Competing phases and critical behavior in three coupled spinless Luttinger liquids
• Pair binding and enhancement of pairing correlations in asymmetric Hubbard ladders
• Ambipolar doping of a charge-transfer insulator in the Emery model
• Influence of oxygen orbitals and boundary conditions on the pairing behavior in the Emery model for doped ladders
• Three-Dimensional Multiband d-p Model of Superconductivity in Spin-Chain Ladder Cuprate