E. Stoll
Ultramicroscopy
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.
E. Stoll
Ultramicroscopy
H.R. Jauslin, T. Schneider, et al.
Journal of Physics C: Solid State Physics
T. Schneider, E. Stoll
Physical Review B
E. Stoll, A. Baratoff, et al.
Journal of Physics C: Solid State Physics