Charge density wave in the spin ladder of Sr$_{14-x}$Ca$_x$Cu$_{24}$O$_{41}$

Details Charge density wave in the spin ladder of Sr$_{14-x}$Ca$_x$Cu$_{24}$O$_{41}$ Charge density wave in the spin ladder of Sr$_{14-x}$Ca$_x$Cu$_{24}$O$_{41}$

2006-12-28

arxiv.org/abs/cond-mat/0612669v1

Physica C 460-462, 1043 (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 2 figures, accepted for publication in Physica C as the proceedings of the M2S-HTSC VIII Conference, Dresden 2006

Scientific paper

10.1016/j.physc.2007.03.267

We 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.

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