On the Possibility to Create Nonthermal Solitons in a One Dimensional Magnetic Sine Gordon System
Recently thermally activated sine-Gordon solitons have been observed in the one dimensional magnetic systems TMMC 1,2 and CsNiF3 3-5 (actually, in CsNiF3 this is a point of discussion6-9). In this article we want to discuss the possibility to create nonthermal solitons in a one dimensional sine-Gordon system by a time dependent magnetic field. These nonthermal solitons will appear in addition to the thermally excited ones. This would open e.g. the possibility to study a nonequilibrium system and questions like soliton-soliton interaction (if the density is made high enough) and soliton diffusion (because they are created locally).
KeywordsAdditional Field Heisenberg Ferromagnet Ternal Field Classical Ground State Time Dependent Magnetic Field
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