Distinguishing Patterns of Charge Order: Stripes or Checkerboards

Details Distinguishing Patterns of Charge Order: Stripes or Checkerboards Distinguishing Patterns of Charge Order: Stripes or Checkerboards

2006-02-28

arxiv.org/abs/cond-mat/0602675v2

Phys. Rev. B 74, 134507 (2006)

Physics

Condensed Matter

Strongly Correlated Electrons

10 pages, 7 figures, 1 table, 69 references; 2 new footnotes

Scientific paper

10.1103/PhysRevB.74.134507

In two dimensions, quenched disorder always rounds transitions involving the breaking of spatial symmetries so, in practice, it can often be difficult to infer what form the symmetry breaking would take in the ``ideal,'' zero disorder limit. We discuss methods of data analysis which can be useful for making such inferences, and apply them to the problem of determining whether the preferred order in the cuprates is ``stripes'' or ``checkerboards.'' In many cases we show that the experiments clearly indicate stripe order, while in others (where the observed correlation length is short), the answer is presently uncertain.

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