Nanoscale Magnetic Materials - Magnetic Domains

Stripe domains

Stripe domains big

Ni81Fe19 stripe domains

Coexisting weak and strong stripe domains in a sputtered Permalloy film with weak out-of-plane magnetic anisotropy.
 
J. McCord, J. Westwood, Domain optimization of sputtered permalloy shields for recording heads, IEEE Transactions on Magnetics 37, 1755-1757 (2001)