ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Above 2.6 K, CsNiF3 is an excellent example of a soliton-bearing spin-chain system. We have studied the long wavelength excitations in CsNiF3 by spin resonance, using a strip line technique that couples to finite q excitations. In addition to the uniform precession mode, we have observed a magnetostatic resonance. It lies at a lower energy than the uniform mode, consistent with the spectrum expected in linear response. The uniform mode, however, broadens much more rapidly with temperature. We propose that a dipolar magnon-soliton interaction is the dominant channel for the relaxation of long wavelength excitations in this quasi-1D system.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.347826
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