Excitation Spectrum and Thermodynamic Properties of the Ising-Heisenberg Linear Ferromagnet

Authors

J. D. Johnson
Jill C. Bonner, University of Rhode Island

Document Type

Article

Date of Original Version

1980

Abstract

New analytic results are presented for the low-T thermodynamics of the Ising-Heisenberg linear ferromagnetic in a magnetic field H₀. For small H₀ the thermodynamic functions show unexpected and interesting structure as a function of H₀ and the anisotropy Δ. The thermal and magnetic energy gaps have singularities, not necessarily at the same Δ−H₀ location, as changes occur in the type of excitation dominating the low-T behavior. The results may relate to quantum solitons in the linear ferromagnet.

Citation/Publisher Attribution

Johnson, J. D., & Bonner, J. C. (1980). Excitation spectrum and thermodynamic properties of the Ising-Heisenberg linear ferromagnet. Phys. Rev. Lett. 44(9), 616-619. doi: 10.1103/PhysRevLett.44.616

Available at: http://dx.doi.org/10.1103/PhysRevLett.44.616