The Effect of Size and Strain on Micro Stripe Magnetic Domain Structure of CoFeB Thin Films

The prerequisite for flexible magnetic electronic devices is the knowledge of preparation technology films and evolution film properties under strain. In this work, CoFeB amorphous ferromagnetic with stripe domains were prepared on polyimide (PI) substrates by oblique sputtering. results show that sputtering induces formation columnar crystal structure in films, which increases perpendicular anisotropy thus leading to appearance domain structures. On basis, processed a microscopic scale investigate size effect strain regulation films. characterization shows contrast reduced striped lithography. triangular, circular ring patterns deflect alignment different degrees. experimental deflection caused shapes produced microstructure needs be close period significant. addition, strain-induced magnetoelastic effectively rotates orientation domains, variation demonstrates tensile/compressive strains vary magnitude out-of-plane stray field film. Our provide some insight into modulation physical