233 citations · 1.8k across the 66 of their papers we have counts for
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cond-mat.str-el2002
Effect of a Staggered Magnetic Field on the S=1 Haldane Chain with Single-ion Anisotropy
F. Anfuso, E. Ercolessi, G. Morandi +1
We analyze the gaps in the excitation spectrum of a Haldane chain with single-ion anisotropy in a staggered field. We show that the gap along the direction of the field increases a…
cond-mat2002★ 3 cited
Continuum in the Excitation Spectrum of the S=1 Compound CsNiCl_3
E. Ercolessi, G. Morandi, M. Roncaglia
Recent neutron scattering experiments on CsNiCl_3 reveal some features which are not well described by the nonlinear sigma model nor by numerical simulations on isolated S=1 spin c…