03-10-2016, 10:16 AM
1457414237-1MagneticDomainandDomainWalls1.ppt (Size: 2.79 MB / Downloads: 3)
Domain walls
Bloch wall
Neel wall
Cross-Tie wall
2. Magnetic domains
Uniaxial wall spacing
Closure domain
Stripe domains
3. Some methods for the domain observation
SEMPA
MFM
Magneto-optical
In 1907, Weiss Proposed that magnetic domains that are regions inside the material that are magnetized in different direction so that the net magnetization is nearly zero.
Domain walls separate one domain from another.
Magnetic Domains
Once domains form, the orientation of magnetization in each domain and the domain size are determined by
Magnetostatic energy
Crystal anisotropy
Magnetoelastic energy
Domain wall energy