J.V. Harzer, B. Hillebrands, et al.
Journal of Magnetism and Magnetic Materials
We have studied the infrared reflectivity of normal and superconducting La2-xSrxCuO4 up to 4000 cm-1. For x=0.15 we observe an electronic excitation at about 60 meV (450 cm-1), and, at essentially the same energy, an optic phonon. As we move away from the optimal high critical temperature (Tc) value of x=0.15, we find that these features become much weaker. We propose that this 60-meV electronic excitation and the phonon in resonance with it provide the mediating interaction which gives rise to superconductivity at such high temperatures in this class of materials. © 1987 The American Physical Society.
J.V. Harzer, B. Hillebrands, et al.
Journal of Magnetism and Magnetic Materials
I.K. Pour, D.J. Krajnovich, et al.
SPIE Optical Materials for High Average Power Lasers 1992
A. Nagarajan, S. Mukherjee, et al.
Journal of Applied Mechanics, Transactions ASME
Peter J. Price
Surface Science