Perpendicular magnetic media by anodic oxidation method and their recording characteristics

Physical properties of elongated inorganic nanoparticles

“…This property can be exploited in both biomedical and magnetic recording media applications. The synthesis of 1D metallic nanostructures has been classically carried out by template or membrane-assisted methods [401], metal evaporation [402], pyrolysis [403], molecular beam epitaxy [404], lithography [333] and surfactant-assisted colloidal methods [405]. All these methods have been proved to successfully lead to well-defined magnetic metal 1D nanostructures.…”

Interplay between the magnetic anisotropy contributions of cobalt nanowires

“…6 Among them, lithography represents a top-down fabrication technique where a bulk material is reduced in size to a nanoscale pattern. Alternatively, electrodeposition 14 is a very simple and inexpensive bottom-up technique which allows fabrication of large arrays of magnetic nanowires. Combined with the use of self-assembling methods for the deposition of membranes, 17 it has the particular advantage of producing systems with high PMA and ultrahigh densities.…”

Nanoparticle Films

“…Nanowires of metals or alloys of length in micrometer range can be fabricated by filling the pore by A.C. electrolysis [62,63]. These arrays of ferromagnetic nanowires prepared by this technique show distinct magnetic properties, e. g., easy axis of magnetization perpendicular to the substrate plane, enhanced coercivity (H c ), and remanent magnetization (M r / [64]. The fabrication of nanowire arrays of Co, FeNi, and Ni by electrochemical deposition in the pores of anodic alumina and their structural and magnetic properties [65][66][67] has been reported.…”