Advertisement

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

Response Function Weak Magnetic Field Rutherford Appleton Laboratory Ground State Configuration Neutron Scattering Experiment 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    M. Steiner: J. Magn. Magn. Mat. 31–34, 1277 (1983)Google Scholar
  2. 2.
    H. Mori: Prog. Theor. Phys. 34, 399 (1965).CrossRefADSGoogle Scholar
  3. 3.
    B. DeRaedt, H. DeRaedt and J. Fivez: Phys. Rev. B23, 4597 (1980).MathSciNetGoogle Scholar
  4. 4.
    E. Balcar, S.W. Lovesey and J.M. Loveluck: Z. Phys. B54, 195 (1984).CrossRefGoogle Scholar
  5. 5.
    S.W. Lovesey, Theory of Neutron Scattering from Condensed Matter, vol. 2, (Oxford University Press 1984 ).Google Scholar
  6. 6.
    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

Personalised recommendations