"Excitation Spectrum and Thermodynamic Properties of the Ising-Heisenbe" by J. D. Johnson and Jill C. Bonner
 

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 ΔH0 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.

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