Quasi-1D spin-1/2 Heisenberg magnets in their ordered phase: correlation functions

Abstract

We study weakly coupled antiferromagnetic spin chains in their ordered phase by combinining an exact solution of the single-chain problem with an RPA analysis of the interchain interaction. A single chain is described by a quantum Sine-Gordon model and dynamical staggered susceptibilities are determined by employing the formfactor approach to quantum correlation functions. We consider both antiferromagnetic order encountered in quasi-1D materials like $KCu{F}_3$ and spin-Peierls order as found in $CuGe{O}_3$.

16 pages of revtex, 12 figures

References in corpus (1)

• Magnetic Excitations in the S=1/2 Alternating Chain Compound (VO)_2P_2O_7

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