Direct observation of the discrete character of intrinsic localized modes in an antiferromagnet

Abstract

In a strongly nonlinear discrete system, the spatial size of an excitation can become comparable to, and influenced by, the lattice spacing. Such intrinsic localized modes (ILMs)—also called ‘discrete breathers’ or ‘lattice solitons’—are responsible for energy localization in the dynamics of discrete nonlinear lattices. Their energy profiles resemble those… (More)
DOI: 10.1038/nature03038

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