Abstract： Using a very useful quantity in physics and chemistry, the electronegativity, we have found that for nearly 70 high-Tc oxide superconductors (HTOS), the average electronegativity is in a narrow range 2.5-2.7. The difference of bond character between the HTOS and the conventional superconductors has been discussed. Finally, two categories of superconductors in terms of the group average electronegativity are suggested.
ZHANG Liyuan. On Electronegativity of the High-Tc Oxide Superconductor[J]. 中国物理快报, 1992, 9(9): 495-497.
ZHANG Liyuan. On Electronegativity of the High-Tc Oxide Superconductor. Chin. Phys. Lett., 1992, 9(9): 495-497.
1992, Vol. 9 
