Publication
Journal of Applied Physics
Paper

Excitation spectrum of ferromagnetic Heisenberg chains

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Abstract

We present a review of the developments leading to our present understanding of the excitation spectrum of planar and uniaxial Heisenberg chains (xxz) as probed by dynamic form factors. Exact zero-temperature results, finite-chain calculations for s = 1/2, and molecular-dynamics results, realistic for s≫1 and T≳0, are discussed, and the role of envelope solitons clarified.

Date

01 Dec 1982

Publication

Journal of Applied Physics

Authors

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