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Modeling magnetization curves in magnetic thin films with striped patterns.
M Di Pietro Martínez1, J Milano, M Eddrief
1Instituto Balseiro, Universidad Nacional de Cuyo, Av. Bustillo 9500, (R8402AGP) San Carlos de Bariloche, RN, Argentina.
This study models magnetic stripe patterns in thin films. We extracted geometric information like domain wall width and magnetization canted angle from magnetization curves.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Magnetism
Background:
- Magnetic thin films often exhibit stripe patterns.
- In-plane magnetization curves show linear behavior below saturation field for these patterns.
Purpose of the Study:
- To develop free energy models for in-plane magnetization curves.
- To extract geometrical information of stripe patterns, including domain wall width and maximum canted angle.
Main Methods:
- Developing free energy models.
- Analyzing in-plane magnetization curves.
- Applying models to Fe(1-x)Ga(x) magnetic films.
Main Results:
- The models successfully extract geometrical parameters.
- For Fe(1-x)Ga(x) films with 160 nm period, a maximum canted angle of 85° was found.
- A domain wall width of approximately 30 nm was determined.
Conclusions:
- Free energy models are effective for characterizing magnetic stripe patterns.
- The study provides key geometrical insights into magnetic domain structures.
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