Soliton contribution to the thermodynamics of the easy-plane antiferromagnetic chain: A model of TMMC [(CH3)4NMnCl3]

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  • H. J. Jensen
  • O. G. Mouritsen
  • H. C. Fogedby
  • P. Hedegård
  • A. Svane

The classical easy-plane antiferromagnetic chain in a magnetic field is investigated using both an analytic steepest-descent method and computer simulation techniques. The free energy is derived analytically by means of a mapping onto the soliton-bearing double-anisotropic ferromagnet. The specific heat is calculated numerically and the results are compared with the analytical findings and with experimental measurements on the linear-chain antiferromagnet TMMC in order to evaluate the validity of the analytical theory and to assess the importance of quantum fluctuations in TMMC.

Original languageEnglish
JournalJournal of Magnetism and Magnetic Materials
Issue numberPart 2
Pages (from-to)829-830
Number of pages2
Publication statusPublished - 1986
Externally publishedYes

ID: 238391794