Magnetic properties of two dimensional nickel nanowires

We have performed first principles calculations for two dimensional, infinite length nickel nanowires using spin density functional theory. Our results show that, the magnetization in nickel nanowires is strongly dependent on geometry of the nanowire. The increased magnetization in nickel nanowires is attributed by reduced coordination of the structure. The relativistic calculations show that nickel nanowires show strong magnetic anisotropy and the magnetization points along the axial direction of the nanowire except for three row rectangular structure. The magnetic anisotropy energy reduces as the number of rows are increased.