Recording Characteristics of Acicular Barium Ferrite Particulate Medium with Perpendicular Magnetic Anisotropy.

Thin films of barium ferrite with perpendicular magnetic anisotropy produced by laser ablation deposition

Barium ferrite thin films with perpendicular magnetic anisotropy have been prepared on heated (001) sapphire substrates by laser ablation deposition in an oxygen atmosphere using a KrF excimer laser. X-ray diffraction patterns reveal highly oriented films of the magnetoplumbite phase with a c-axis angular spread of 1.8”. Scanning electron micrographs reveal that these films are polycrystalline ...

Barium and Strontium Ferrite Perpendicular Thin Film Media with a Sendust Soft Magnetic Underlayer

The possibility of using sendust (FeAlSi) as the soft magnetic underlayer for hexagonal barium ferrite (BaM) and strontium ferrite (SrM) was studied. Sendust films were found to retain their soft magnetic properties with a rapid thermal anneal (RTA) at 800 C for 60 s, which is necessary to crystallize the as-deposited amorphous BaM and SrM films. Several film structures with sendust films as th...

Effects of Stoichiometry on the Magnetic and Structural Properties of Perpendicular Barium Ferrite Thin Film Media

The effects of stoichiometry factor on the magnetic and structural properties of perpendicular barium ferrite thin films with composition of BaO (Fe2O3) were systematically investigated. Within the range 2 2 6, the -axis for barium ferrite thin films can be oriented perpendicularly by the use of Pt underlayer and with optimized processing conditions. Perpendicular -axis orientation becomes wors...

Properties of magnetic nanodots with perpendicular anisotropy

Related Articles Demonstration of laser induced magnetization reversal in GdFeCo nanostructures Appl. Phys. Lett. 101, 022410 (2012) Tuning electronic and magnetic properties of zigzag graphene nanoribbons by large-scale bending Appl. Phys. Lett. 100, 263115 (2012) Magnetic and electronic properties of α-graphyne nanoribbons J. Chem. Phys. 136, 244702 (2012) Reduced spin transfer torque switchi...

Recording characteristics of perpendicular magnetic media with CoZrNb, NiFeNb, and exchange-pinned NiFeNb soft magnetic underlayers