Composite solitons and magnetic resonances in superfluidHe3-A

Abstract

Making use of the Ginzburg-Landau free energy describing the textures in superfluid ${}_{}{}^3{}_{}{}^{}\mathrm{He}$-$A$, detailed properties of a composite soliton (which involves both $\hat{l}$ and $\hat{d}$ vectors) are studied. It is shown that $\hat{d}$ solitons (or magnetic solitons) are unstable against formation of composite solitons in an open system. The stability of the composite soliton as well as the magnetic resonance associated with them are considered.