Hole distribution for (Sr,Ca,Y,La)_14 Cu_24 O_41 ladder compounds studied by x-ray absorption spectroscopy
arXiv:cond-mat/0008320 · doi:10.1103/PhysRevB.62.14384
Abstract
The unoccupied electronic structure for the Sr_14Cu_24O_41 family of two-leg ladder compounds was investigated for different partial substitutions of Sr^2+ by Ca^2+, leaving the nominal hole count constant, and by Y^3+ or La^3+, reducing the nominal hole count from its full value of 6 per formula unit. Using polarization-dependent x-ray absorption spectroscopy on single crystals, hole states on both the chain and ladder sites could be studied. While for intermediate hole counts all holes reside on O sites of the chains, a partial hole occupation on the ladder sites in orbitals oriented along the legs is observed for the fully doped compound Sr_14Cu_24O_41. On substitution of Ca for Sr orbitals within the ladder planes but perpendicular to the legs receive some hole occupation as well.
10 pages RevTeX style with 7 embedded figures + 1 table; accepted by Phys. Rev. B
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Cited by in corpus (56)
- Magnetic light scattering in low-dimensional quantum spin systems
- Magnon Heat Transport in (Sr,La)_14Cu_24O_41
- Hole crystallization in the spin ladder of Sr14Cu24O41
- Resonant Elastic Soft X-Ray Scattering
- Heat conduction in low-dimensional quantum magnets
- One- and Two-Triplon Spectra of a Cuprate Ladder
- Collective spin excitations in a quantum spin ladder probed by high-resolution Resonant Inelastic X-ray Scattering
- Observation of two-magnon bound states in the two-leg ladders of (Ca,La)14Cu24O41
- Electron Energy-Loss Spectroscopy: A versatile tool for the investigations of plasmonic excitations
- Spectral Properties of Magnetic Excitations in Cuprate Two-Leg Ladder Systems
- Suppression of the charge-density-wave state in Sr_14Cu_24O_41 by calcium doping
- Magnon-Hole Scattering and Charge Order in
- Raman Response in Antiferromagnetic Two-Leg S=1/2 Heisenberg Ladders
- Charge-density wave formation in Sr_{14}Cu_{24}O_{41}
- Heat transport of cuprate-based low-dimensional quantum magnets with strong exchange coupling
- Quantum melting of the hole crystal in the spin ladder of Sr14-xCaxCu24O41
- Revisiting the chain magnetism in Sr14Cu24O41: Experimental and numerical results
- Hole redistribution in Sr\_(14-x)Ca\_xCu\_24O\_41 (x = 0, 12) spin ladder compounds: ^63Cu and ^17O NMR study under pressure
- Experimental observation of the crystallization of a paired holon state
- Influence of the incommensurability in family compounds
- Raman Response of Magnetic Excitations in Cuprate Ladders and Planes
- Variable-range hopping conductivity in the copper-oxygen chains of La_3Sr_3Ca_8Cu_24O_41
- Magnetic ground state of coupled edge-sharing CuO_2 spin-chains
- Collective density wave excitations in two-leg Sr_{14-x}Ca_xCu_{24}O_{41} ladders
- The unusual electronic structure of the "pseudo-ladder" compound CaCu2O3
- Phase diagrams of a classical two-dimensional Heisenberg antiferromagnet with single-ion anisotropy
- Absence of long-ranged charge order in at x=0.08
- Charge order induced sharp Raman peak in Sr_14Cu_24O_41
- Origin of charge density wave in the coupled spin ladders in SrCaCuO
- Magnetic excitations in two-leg spin 1/2 ladders: experiment and theory
- Magnetisation of hole-doped CuO2 spin chains in Sr14-xCaxCu24O41
- Crossover of the high-energy spin fluctuations from collective triplons to localized magnetic excitations in doped Sr14-xCaxCu24O41 cuprate ladders
- 17O NMR Study of the Local Charge State in the Hole Doped Cu2O3 Two-Leg Spin-Ladder A14Cu24O41 (A=La6Ca8, Sr14, Sr11Ca3, Sr6Ca8)
- Electronic structure of the incommensurate compound
- : a complete model for the chain sub-system
- Influence of doping on the Hall coefficient in Sr_{14-x}Ca_xCu_24O_41
- Beyond-Hubbard pairing in a cuprate ladder
- Hole-depletion of ladders in SrCuO induced by correlation effects
- Symmetry-protected electronic metastability in an optically driven cuprate ladder
- Theory of L-edge resonant inelastic x-ray scattering for magnetic excitations in two-leg spin ladder
- Plasmons and Interband Transitions of CaSrCuO investigated by Electron Energy-Loss Spectroscopy
- One-dimensional Hubbard model at quarter filling on periodic potentials
- Suppression of the Charge-Density-Wave State in SrCaCuO by External Pressure
- Magneto-optic far-infrared study of SrCuO: triplet excitations in chains
- Evidence for an orbital dependent Mott transition in the ladders of (La,Ca)SrCuO derived by electron energy-loss spectroscopy
- Polarization-dependent infrared reflectivity study of SrCaCuO under pressure: Charge dynamics, charge distribution, and anisotropy
- Strong Coulomb effects in hole-doped Heisenberg chains
- Pressure-induced phase transition and bi-polaronic sliding in a hole-doped Cu_2O_3 ladder system
- Exact diagonalization studies of doped Heisenberg spin rings
- ESR study of (Sr,La,Ca)_{14}Cu_{24}O_{41}
- Doping dependence of the spin gap in a 2-leg ladder
- A light-induced charge order mode in a metastable cuprate ladder
- Effects of Ca substitution on quasi-acoustic sliding modes in SrCaCuO
- Magnetization of undoped 2-leg S = 1/2 spin ladders in La4Sr10Cu24O41
- Revisiting and modeling the magnetism of hole-doped CuO_2 spin chains in Sr{14-x}Ca_xCu_{24}O_{41}
- Charge order in the incommensurate compounds