RESEARCH ON STRIPE DOMAIN STRUCTURES IN FERROMAGNETIC METAL FILMS.
Final rept., 15 Dec 65-15 Dec 66,
FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
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An experimental and theoretical investigation of ferromagnetic thin films, demonstrating anaomalous stripe domains, has been conducted. The origin of the stripe domains is attributed to the existance of a uniaxial anisotropy perpendicular to the plane of the film which developes from a planar stress system and a vapor beam angle of incidence pile-up structure both relatable to fabrication procedures. The strip domain configuration is a planar 180 degree alternating direction of magnetization pattern with 180 degree Bloch transition walls. It is shown that the existence of a spin-wave type stripe domain system requires 1 a perpendicular anisotropy larger than the planar shape anisotropy or 2 an effective planar demagnetizing field through small sample size in addition to a perpendicular anistropy less than the planar shape anisotropy. Author
- Miscellaneous Materials
- Electricity and Magnetism