Controlled switching of intrinsic localized modes in a 1-D antiferromagnet

Abstract

Nearly steady-state locked intrinsic localized modes (ILMs) in the quasi-1d antiferromagnet (C2H5NH3)2CuCl4 are detected via four-wave mixing emission or the uniform mode absorption. Exploiting the long-time stability of these locked ILMs, repeatable nonlinear switching is observed by varying the sample temperature, and localized modes with various amplitudes are created by modulation of the microwave driver power. This steady-state ILM locking technique could be used to produce energy localization in other atomic lattices.

4 pages, 4 figures, submitted to Phys. Rev. Lett. v.2 : clarifications of text and figures in response to comments

References in corpus (1)

• Spontaneous creation of discrete breathers in Josephson arrays

Cited by in corpus (6)

• Statistical mechanics and dynamics of solvable models with long-range interactions
• Long-Range Effects in Layered Spin Structures
• Driven localized excitations in the acoustic spectrum of small nonlinear macroscopic and microscopic lattices
• Models with short and long-range interactions: phase diagram and reentrant phase
• Kuramoto model with additional nearest-neighbor interactions: Existence of a nonequilibrium tricritical point
• Canonical equilibrium of mean-field $O(n)$~models in the presence of random fields