Magnetization micromagnetic calculation

Figure 3. Vortex magnetization state in a 0.2- am cube of magnetite, determined using 3-dimensional micromagnetic calculations (after Fabian 1998).

All these sizes can be treated as a unit of magnetic moment in micromagnetic calculations, for example, see Fukunaga and Kanai (1998). The interactions among them can also be evaluated in the simulations. 

Kronmuller et al. (1994, 1996) and Bachmann et al. (1998) have been continuously developing micromagnetics-based methods. They studied the coercivity of rare-earth magnets by calculations in which each parameter was evaluated by following the well-known Stoner-Wohlfarth coherent rotation equation (Stoner and Wohlfarth 1948) ... 

This chapter investigates how intrinsic and extrinsic properties are affected by nanostructuring. Emphasis is on model calculations and analytical approximations, as contrasted to Chapter 2 by Kashyap et al. which focuses on numerical calculations, and Ch. 4 by Schrefl et al., where emphasis is on micromagnetic models and simulations. Section 2 is devoted to static properties, whereas section 3 is concerned with magnetization dynamics. Finally, section 4 presents a number of case studies. 

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