Possibility of optical evidence for charge-transfer excitations in ${\mathrm{YBa}}_2$${\mathrm{Cu}}_3$${\mathrm{O}}_{7\mathrm{-}\mathrm{\delta }}$

This publication has 18 references indexed in Scilit:

• Phonon anomalies and range of superconducting energy gaps from infrared studies of ${\mathrm{YBa}}_2$${\mathrm{Cu}}_3$${\mathrm{O}}_{7\mathrm{-}\mathrm{\delta }}$
  Physical Review B, 1989
• Superconductivity in oxides: toward a unified picture
  Zeitschrift für Physik B Condensed Matter, 1989
• Structural anomalies at the disappearance of superconductivity in Ba2YCu3O7−δ: Evidence for charge transfer from chains to planes
  Physica C: Superconductivity and its Applications, 1988
• Mixed valency, hole concentration, and $T_c$ in ${\mathrm{YBa}}_2$${\mathrm{Cu}}_3$${\mathrm{O}}_{6+\mathrm{x}}$
  Physical Review B, 1988
• Planes and chains: A novel excitonic mechanism for high temperature superconductivity
  Solid State Communications, 1988
• Lattice dynamics of the high-$T_c$ superconductor ${\mathrm{YBa}}_2{\mathrm{Cu}}_3{\mathrm{O}}_{7-x}$
  Physical Review B, 1988
• Optical properties ofLa1.85Sr0.15CuO4: Evidence for strong electron-phonon and electron-electron interactions
  Physical Review B, 1987
• Normal-state gap transition in Cu-O superconductors
  Physical Review B, 1987
• Charge transfer excitations and superconductivity in “ionic” metals
  Solid State Communications, 1987
• Plasma Spectra of New Superconductors (La_1-xA_x)₂CuO₄
  Japanese Journal of Applied Physics, 1987