One-dimensional micromagnetic domain structures and their physical nature in ferromagnetic crystals

This work analyzes the simplest one-dimensional micromagnetic configurations in bulk ferromagnetic crystals, neglecting surface effects on magnetization. The balance between exchange and anisotropy energies determines the structure and stability of domain walls with finite thickness. The gradual rotation of the magnetization vector across the boundary between neighboring domains minimizes the total energy and defines the equilibrium wall width. The study distinguishes between 180⁰ and 90⁰ domain walls for crystals with uniaxial and cubic anisotropy. The results provide fundamental insight into micromagnetic configurations in massive ferromagnetic materials and are relevant for the development of magneto-optical and spintronic thin-film devices.

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