1. Experiment Experiment: thing ferromagnetic films
Effective field H is nothing but variation of the magnetic energy. More precisely – density of energy. We discuss only stationary case, i.e. the case when d/dt = 0

2. Base model Stationary Landau-Lifshitz equation
Effective field H is nothing but variation of the magnetic energy. More precisely – density of energy. We discuss only stationary case, i.e. the case when d/dt = 0

3. Energy of magnetic
Stationary Landau-Lifshitz equation

4. Radial and spherical coordinates
Symmetry of magnetization distribution:

5. 1D equation
The equation is the same as for the pendulum with not constant gravity

6. Numeric investigation (easy-plane)
Method of shooting in phase plane
Asymptotic of magnetization is the asymptotic of only single solution

7. Numeric investigation (easy-axes)
Method of shooting in phase plane
The conservation low of energy in pendulum model don’t allow to construct a solution with right asymptotic

8. Solution:
Example of magnetization distribution at

9. Solution: magnetic “Targets”
Example of magnetization distribution at (non constant anisotropy)

10. Contence Introduction
Model of magnets 1. From 2D model to 1D model 2. Solutions
Conclusion
Благодарю за внимание.