Correlation Between Charge Order and Second-Neighbor Hopping in Cuprate Superconductors.

The correlation between the charge-order wave vector <italic>Q</italic>CD and second-neighbor hopping <italic>t</italic>′ in cuprate superconductors is studied based on the <italic>t</italic>- <italic>t</italic>′- <italic>J</italic> model. It is shown that the magnitude of the charge-order wave vector <italic>Q</italic>CD increases with the increase of <italic>t</italic>′, and then the experimentally observed differences of the magnitudes of the charge-order wave vector <italic>Q</italic>CD among the different families of cuprate superconductors at the same doping concentration can be attributed to the different values of <italic>t</italic>′. [ABSTRACT FROM AUTHOR]