Bloch Wall HD

Two adjacent domains magnetized in opposite directions are always separated by a transitive layer (Bloch Wall) in which there is a gradual turn of spins as shown in animation. Magnetization is accompanied with a movement of such Bloch Wall.

Category:

Science & Technology

Tags:

• bloch
• wall
• physics
• animations

[brandtalln]

@chri2955 No, this is a Bloch wall. Wikipedia links to this video and it states that the video is titled wrong (on the Bloch Wall page), but that is a misleading statement. We know this is a Bloch Wall because the magnetic moments are rotating out of plane (in the middle of the transition, the moment is pointed out of the computer screen towards your face) with respect to the two domains. In a Néel wall, the moments would be rotating in plane. That is, they'd point left to right on the screen.

[MrJWM29]

@chri2955 Albert Roy Davis was the first scientist to discover that magnetic fields spin, and he was also the first to discover that the spin of each magnetic pole reverses direction in the Bloch Wall, in a broken figure eight.

[chri2955]

This is Neel wall motion isnt it?