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Doped planar quantum antiferromagnets with striped phases

A. H. Castro Neto·Daniel Hone
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Abstract

We study the properties of the striped phases that have been proposed for the doped cuprate planar quantum antiferromagnets. We invoke an effective, spatially anisotropic, non-linear sigma model in two space dimensions. Our theoretical predictions are in {\it quantitative} agreement with recent experiments. We focus on (i) the staggered magnetization at $T=0$ and (ii) the Néel temperature, as functions of doping; these have been measured recently in La${}_{2-x}$ Sr${}_x$ Cu O${}_4$ with $0 \leq x \leq 0.018$. Good agreement with experiment is obtained using parameters determined previously and independently for this system. These results support the proposal that the low doping (antiferromagnetic) phase of the cuprates has a striped configuration.

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A. H. Castro Neto, Daniel Hone. 1995-11-29. Doped planar quantum antiferromagnets with striped phases. https://doi.org/10.1103/physrevlett.76.2165

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