Document Type

Article

Publication Date

5-2002

Department

Physics

Language

English

Publication Title

Journal of Applied Physics

Abstract

The formation of intrinsic localized modes (ILMs) via the uniform mode instability is considered for different crystal geometries for a layered quasi-1D antiferromagnet (C2 H5 NH3 )2 CuCl4. By varying the sample shape and hence the demagnetization factor, it is possible to tune the frequency of the uniform mode with respect to the long-wavelength spin wave frequencies. Molecular dynamics simulations predict that the smaller the difference between the two frequencies, the easier to create ILMs from the large amplitude uniform mode. High power nonlinear experiments on samples of different shapes confirm this prediction.

Comments

This published version is made available on Dickinson Scholar with the permission of the publisher. For more information on the published version, visit AIP Publishing's Website.

© 2002 American Institute of Physics

DOI

10.1063/1.1448795

Included in

Physics Commons

COinS