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  • Atomic and magnetic structure of La2CuO4. Arrows indicate the orientation of magnetic moments in the antiferromagnetic phase. The lattice parameters shown correspond to the low-temperature orthorhombic (LTO) crystal structure.
  • Atomic and magnetic structure of La2CuO4. Arrows indicate the orientation of magnetic moments in the antiferromagnetic phase. The lattice parameters shown correspond to the low-temperature orthorhombic (LTO) crystal structure.
  • LCO_structure.png
  • Diagram illustrating the arrangement of the Cu 3d_{x2-y2} and O 2p orbitals that are the basis of the states close the Fermi level in CuO2 planes.
  • Diagram illustrating the arrangement of the Cu 3d_{x2-y2} and O 2p orbitals that are the basis of the states close the Fermi level in CuO2 planes.
  • d-p.png
  • Plots of the imaginary part of the dielectric function, which equals the real part of the optical conductivity divided by frequency, for polarization parallel to the CuO2 planes in La2CuO4 and La1.66Sr0.34CuO4 from experiment (bottom) and from a calculation (top) based on density-functional theory for La2CuO4 [I. I. Mazin, et al, JETP Lett. 47, 113 (1988).], as reported by Uchida et al. [Phys. Rev. B 43, 7942 (1991).].
  • Plots of the imaginary part of the dielectric function, which equals the real part of the optical conductivity divided by frequency, for polarization parallel to the CuO2 planes in La2CuO4 and La1.66Sr0.34CuO4 from experiment (bottom) and from a calculation (top) based on density-functional theory for La2CuO4 [I. I. Mazin, et al, JETP Lett. 47, 113 (1988).], as reported by Uchida et al. [Phys. Rev. B 43, 7942 (1991).].
  • mazin-uchida.png