Field Dependent Spin Dynamics of Antiferromagnetic Heisenberg Chains

  • G. P. Meech
  • S. W. Lovesey
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 54)

Abstract

The dynamic properties of simple magnetic chains, in which contiguous pairs of spins are exhange coupled, have been studied with a variety of techniques. These techniques include soliton theories in the presence of weak magnetic fields [1], perturbative studies of a generalized Langevin equation for intermediate and large fields [2, 3] and computer simulations [4]. Here we calculate, using a new mode-coupling theory, the response function measured in neutron scattering experiments [5] and computer simulations [4]. Special attention is given to the dynamics at the field induced cross-over from antiferromagnetic to ferromagnetic static correlations.

Keywords

Soliton Oxon 

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References

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    S.W. Lovesey, Theory of Neutron Scattering from Condensed Matter, vol. 2, (Oxford University Press 1984 ).Google Scholar
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    S.W. Lovesey: Condensed Matter Physics, Dynamic Correlation; Frontiers in Physics vol. 49 ( Benjamin/Cummings, Reading 1980 ).Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1984

Authors and Affiliations

  • G. P. Meech
    • 1
  • S. W. Lovesey
    • 2
  1. 1.Department of PhysicsThe UniversitySouthamptonUK
  2. 2.Rutherford Appleton LaboratoryChilton OxonUK

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