Die Kristallstruktur von Li<sub>2</sub>CuO<sub>2</sub>

Hoppe, R.; Rieck, H.

doi:10.1002/zaac.19703790206

Cited by 80 publications

(28 citation statements)

References 9 publications

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“…Note that the edge-sharing CuO 4 chain runs along the crystallographic b direction, and the Cu-O plaquettes lie perpendicular to the a direction. 1 A single crystal sample of Li 2 CuO 2 (a ϭ3.662 Å, bϭ2.863 Å, and cϭ9.393 Å) was grown using the traveling solvent floating zone method. The crystal was cleaved along the (101) plane and mounted on an aluminum sample holder at room temperature.…”

Section: Methodsmentioning

confidence: 99%

Charge and orbital excitations inLi2CuO2

et al. 2004

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We report a resonant inelastic x-ray scattering study of electronic excitations in Li 2 CuO 2 , an insulating compound comprised of ribbons of edge-sharing copper-oxygen chains. Three excitations, which show little dependence on momentum transfer, are observed in our measurements. The lowest-energy excitation at ϳ2.1 eV is dispersionless and is attributed to a localized d-d orbital excitation. We also observe two excitations at ϳ5.4 eV and ϳ7.6 eV which we assign to charge-transfer excitations. These high-energy excitations are also dispersionless along the copper-oxygen chain direction. However, in each case we observe a small energy dispersion along the direction perpendicular to the copper-oxygen ribbons, suggesting a significant interchain coupling in this system. We also discuss the possible implications of ferromagnetic nearest-neighbor intrachain coupling on the charge excitation spectra.

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Section: Methodsmentioning

confidence: 99%

Charge and orbital excitations inLi2CuO2

et al. 2004

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“…A series of lithium copper oxide compounds, Li 2 CuO 2 , Li 3 CuO 3 , Li 3 Cu 2 O 4 , LiCu 2 O 2 , LiCu 3 O 3 and so on, have been reported in the literature [9][10][11][12]. Of them, Li 2 CuO 2 is constructed from one-dimensional chains of edgesharing CuO 4 square planar units [13,14] and shows a relatively large amount of lithium per unit formula. Lithium ions are located between the chains, and the large number of lithium sites can facilitate a high capacity of intercalation [15,16].…”

Section: Introductionmentioning

confidence: 98%

Preparation and electrochemical properties of a Li2CuO2–Li2NiO2 solid solution as a lithium-intercalation electrode

Imanishi¹,

Shizuka²,

Ikenishi³

et al. 2006

Solid State Ionics

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“…The characteristics of the crystal structure is one dimensional -Cu-O 2 -Cu-O 2 -chain with the 90 superexchange interaction along the b-axis [1,2]. The material shows an antiferromagnetic transition with T N ¼ 9:3 K which is determined by the susceptibility and specific heat measurements by using a polycrystalline sample [3].…”

Section: Introductionmentioning

confidence: 99%