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

paper

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

arXiv:cond-mat/0612669 · doi:10.1016/j.physc.2007.03.267

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.

arXiv comment4 pages, 2 figures, accepted for publication in Physica C as the proceedings of the M2S-HTSC VIII Conference, Dresden 2006

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Doped Spin Ladder: Zhang-Rice Singlets or Rung-centred Holes?

Charge density wave in the spin ladder of Sr14−x​Cax​Cu24​O41​

Abstract

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