Magnetic ground state of coupled edge-sharing CuO_2 spin-chains

Abstract

By means of density functional theory, we investigate the magnetic ground state of edge-sharing CuO_2 spin-chains, as found in the (La,Ca,Sr)_14Cu_24O_41system, for instance. Our data rely on spin-polarized electronic structure calculations including onsite interaction (LDA+U) and an effective model for the interchain coupling. Strong doping dependence of the magnetic order is characteristic for edge-sharing CuO_2 spin-chains. We determine the ground state magnetic structure as function of the spin-chain filling and quantify the competing exchange interactions.

5 pages, 2 figures, 3 tables, accepted by Phys. Rev. Lett

References in corpus (21)

• Susceptibility of the Spin 1/2 Heisenberg Antiferromagnetic Chain
• Electronic States and Magnetic Propertis of Edge-sharing Cu-O Chains
• Competing orders and quantum criticality in doped antiferromagnets
• The vanadium Magneli phases VnO(2n-1)
• Hole distribution for (Sr,Ca,Y,La)_14 Cu_24 O_41 ladder compounds studied by x-ray absorption spectroscopy
• Anisotropic Superexchange for nearest and next nearest coppers in chain, ladder and lamellar cuprates
• Cyclic Spin Exchange in Cuprate Spin Ladders
• Comparison of different ladder models
• Neel order in doped quasi one-dimensional antiferromagnets
• Charge order, orbital order, and electron localization in the Magneli phase Ti4O7
• Covalent bonding and hybridization effects in the corundum-type transition-metal oxides V2O3 and Ti2O3
• Revisiting the chain magnetism in Sr14Cu24O41: Experimental and numerical results
• Magnetic excitations and structural change in the S=1/2 quasi-one-dimensional magnet Sr_{14-x}Y_{x}Cu_{24}O_{41} (0<x<1)
• Differences Between Hole and Electron Doping of a Two-Leg CuO Ladder
• Influence of the incommensurability in $S{r}_{14-x}C{a}_{x}C{u}_{24}{O}_{41}$ family compounds
• Phase diagrams of a classical two-dimensional Heisenberg antiferromagnet with single-ion anisotropy
• Quenched charge disorder in CuO2 spin chains: Experimental and numerical studies
• Electronic structure of the zigzag spin-chain compound In${}_2$VO${}_5$
• Electronic structure of the $S{r}_{0.4}C{a}_{13.6}C{u}_{24}{O}_{41}$ incommensurate compound
• One-dimensional Hubbard model at quarter filling on periodic potentials
• Strong Coulomb effects in hole-doped Heisenberg chains

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