Bloch wall
Bloch wall
"Bloch wall" is one type of the boundary structure of magnetic domains whose magnetization directions are antiparallel or are different by 180°to each other. The magnetic dipoles continuously rotate in planes parallel to the magnetic boundary and finally connect to those at the adjacent magnetic domain with opposite magnetization. This structure is formed in a bulk specimen with a thickness of more than 100 nm. The thickness of the Bloch wall is about 50 nm for iron. In a diffraction pattern formed by two adjacent magnetic domains containing a Bloch wall, a diffuse intensity line appears connecting the diffraction spots from the two domains.
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