Magnetic states of granular layered CoFe-Al\u3csub\u3e2\u3c/sub\u3eO\u3csub\u3e3\u3c/sub\u3e

The granular layered magnetic system Co80Fe20(t)/Al2 O3 (3 nm), where the Co80Fe20 layers of nominal thickness t form separate, almost spherical magnetic granules of typical diameter 2-3 nm between the Al2O3 spacers, was studied. We discuss measurements of the dc and ac magnetic susceptibility χ for 1 n

Conservation laws, soliton solutions and modulational instability for the higher-order dispersive nonlinear Schrödinger equation

05.45.Yv Solitons, 02.30.Ik Integrable systems, 02.30.Jr Partial differential equations, 75.10.Hk Classical spin models,