Electronic structure of superoxygenated La2NiO4 domains with ordered oxygen interstitials

Abstract

The electronic structure of La2NiO4+d, where additional oxygen interstitials are forming stripes along (1,1,0), are presented. Spin-polarized calculations show that ferromagnetism on Ni sites is reduced near the stripes and enhanced far from the stripes. Totally the magnetic moment becomes reduced because of oxygen interstitials. It is suggested that the oxygen interstitial concentration in oxygen rich domains in nickelates suppress magnetism and give multiband metallic domains.

5 pages, 4 figures

References in corpus (8)

• Scale-free structural organization of oxygen interstitials in La2CuO4+y
• Optimum inhomogeneity of local lattice distortions in La2CuO4+y
• A model for the phase separation controlled by doping and the internal chemical pressure in different cuprate superconductors
• Intrinsic arrested nanoscale phase separation near a topological Lifshitz transition in strongly correlated two-band metals
• The role of thermal disorder for magnetism and the $\alpha -\gamma$ transition in Cerium; Results from density-functional theory
• Different doping from apical and planar oxygen vacancies in Ba${}_2$CuO${}_{4-\delta }$ and La${}_2$CuO${}_{4-\delta }$
• Properties of high-T${}_C$ copper oxides from the nearly-free electron model
• Effects of excess or deficiency of oxygen content on the electronic structure of high-$T_C$ cuprates

Cited by in corpus (5)

• Multiple electronic components and Lifshitz transitions by oxygen wires formation in layered cuprates and nickelates
• Scale free distribution of oxygen interstitials wires in optimum doped HgBa${}_2$CuO${}_{4+y}$
• Electronic structure of HgBa${}_2$CuO${}_{4+\delta }$ with self-organized interstitial oxygen wires in the Hg spacer planes
• VUV Pump and probe of phase separation and oxygen interstitials in La2NiO4+y using spectromicroscopy
• Complex lattice and charge inhomogeneity favoring quantum coherence in high temperature superconductors