Theory of Nuclear Magnetic Relaxation in Haldane Gap Antiferromagnets

Abstract

A theory of Nuclear Magnetic Resonance (NMR) is developed for integer-spin, one-dimensional antiferromagnets, which exhibit the Haldane gap. We consider free boson, free fermion and non-linear sigma model approaches, all of which give similar results. Detailed anisotropy and magnetic field dependence is calculated and compared with experiment.

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References in corpus (2)

• Thermodynamics and spin gap of the Heisenberg ladder calculated by the look-ahead Lanczos algorithm
• Understanding Far-Infrared Absorption in the S=1 Antiferromagnetic Chain Compound NENP

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