Charge density wave in the spin ladder of Sr$_{14-x}$Ca$_x$Cu$_{24}$O$

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/136953We consider a multiband charge transfer model for a single spin ladder describing the holes in Sr$_{14-x}$Ca$_x$Cu$_{24}$O$_{41}$. Using Hartree-Fock approximation we show how the charge density wave, with its periodicity dependent on doping as recently observed in the experiment, can be stabilized by purely electronic many-body interactions.4 pages, 2 figures, accepted for publication in Physica C as the proceedings of the M2S-HTSC VIII Conference, Dresden 2006Strongly Correlated ElectronsSuperconductivityCharge density wave in the spin ladder of Sr$_{14-x}$Ca$_x$Cu$_{24}$O$_{41}$text