Magnetic domain structures and nano-string morphology of laser off-normal deposited amorphous cobalt films with controlled magnetic anisotropy

Abstract Amorphous Co pulsed laser off-normal deposited films have shown uniaxial magnetic anisotropy. They have exhibited values of the anisotropy field between H u =12 and 770 Oe depending on the deposition angle and on the film thickness. We show for the first time the different like nano-string structures—8 to 20 nm width by 120 nm large—of these films. Also the magnetic domain pictures—sharpness zigzag charged walls for high magnetic anisotropic films and big zigzag Bloch walls for films with low anisotropy—are presented.