R. Ghez, J.S. Lew
Journal of Crystal Growth
Emphasis is put on a precise knowledge of the oxygen isotope shift exponent αO is the so far synthesized high-Tc superconductors in order to elucidate the basic mechanism. The known data, see αa in Table 6, indicate the presence of a presumably anharmonic coupling of pyramidal apex oxygen motion along the c-axis in these highly in-plane correlated superconductors. αa is computed from αO=rαa, based on the conjecture that the ratio r of apex to total oxygen-ion content per unit cell is relevant. The related experimental and theoretical literature is reviewed. © 1990 Springer-Verlag.
R. Ghez, J.S. Lew
Journal of Crystal Growth
Julian J. Hsieh
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
P.C. Pattnaik, D.M. Newns
Physical Review B
I.K. Pour, D.J. Krajnovich, et al.
SPIE Optical Materials for High Average Power Lasers 1992