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

Krzysztof Wohlfeld; Andrzej M. Oles; George A. Sawatzky

doi:10.1016/j.physc.2007.03.267

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

Krzysztof Wohlfeld·Andrzej M. Oles·George A. Sawatzky

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Abstract

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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Krzysztof Wohlfeld, Andrzej M. Oles, George A. Sawatzky. 2006-12-28. Charge density wave in the spin ladder of Sr$_{14-x}$Ca$_x$Cu$_{24}$O$_{41}$. https://doi.org/10.1016/j.physc.2007.03.267

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