Phenomenon in iron or iron alloys with a body centered cubicWay in which atoms or ions (considered as hard spheres) pack together to fill space. In BCC packing, the spheres in Layer A are separated slightly and the spheres in Layer B are offset so that they fit into the depressions between atoms in Layer A. Each sphere is touched Click on Term to Read More crystal structureMutual arrangement of atoms, molecules or ions that are packed together in a crystal lattice to form a crystal. Click on Term to Read More where there can be incomplete cancellation of antiferromagnetic arranged spins giving a net magnetic moment. This happens when the sublattices consist of different materials or ions (such as Fe