Abstract
Submicron scaled, one-dimensional-like columnar structure of permalloy (Ni 80 Fe 20 ) films can be self-assembled during epitaxial growth. Two key factors operating in the formation and control of the columnar structure of permalloy films have been verified. The aspect-ratio of the permalloy columnar structure can be tuned by the growth temperature. This in turn makes it possible to manipulate the coercivity and magnetic anisotropy of the permalloy films. ©2000 The American Physical Society.