Incommensurate domain in high-T_c, superconductors based on a localized space charge model

Abstract

We explain the phase difference of an incommensurate modulation wave of a displacive type between adjacent Bi-O and Cu-O planes in Bi-based high-T _c superconductors by assuming that space charges, transferring between the Bi-O and Cu-O planes, are localized on the Bi-O and Cu-O planes to stabilize local polarizations caused by the ion displacement along the c-axis.

Key Words:

• Incommensurate domain
• 2D electron-hole lattice
• charge-transfer energy