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Spin correlation functions and Néel order in the 2D Heisenberg model: Effects of spatial anisotropy

C. Schindelin·D. Ihle·S. -L. Drechsler·H. Fehske
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Abstract

The ground-state properties of the square-lattice spin-1/2 Heisenberg antiferromagnet with spatially anisotropic couplings are investigated by Green's-function projection approaches. The staggered magnetization and the two-spin correlators are calculated; the competition between magnetic long- and short-range order is discussed in comparison with experiments on $\rm Sr_2[Ca_2]CuO_3$.

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C. Schindelin, D. Ihle, S. -L. Drechsler, H. Fehske. 1999-10-07. Spin correlation functions and Néel order in the 2D Heisenberg model: Effects of spatial anisotropy. https://doi.org/10.1016/s0921-4526(99)01064-9

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