Controlling the competing magnetic anisotropy energies in FineMET amorphous thin films with ultra-soft magnetic properties

Surface properties of ultra-thin tetrahedral amorphous carbon films for magnetic storage technology

Diamond-like carbon (DLC) films form a critical protective layer on magnetic hard disks and their reading heads. Film thickness below 2 nm and roughness well below 1 nm are needed for storage density of 200 Gbityinch . We use atomic force 2 microscopy to study the roughness evolution vs. thickness of highly sp hydrogen-free tetrahedral amorphous carbon (ta-C). The 3 roughness of films r general...

GMI Effect of Ultra-Soft Magnetic Soft Amorphous Microwires

In this paper we experimentally studied GMI effect and soft magnetic behavior of Co-rich microwires. Correlation between magnetoelastic anisotropy and magnetic field dependences of diagonal and off-diagonal impedance components are observed. Low field GMI hysteresis, explained in terms of magnetoelastic anisotropy of microwires, has been suppressed by the bias current.

Magnetic properties of amorphous Ni60Ag40 films

Amorphous Ni–Ag films were obtained on liquid nitrogen cooled Si substrates using DC magnetron sputtering. A series of magnetic and magneto-transport property measurements confirm that the film with Ni to Ag atomic ratio of 60:40 is an alloy of the two elements immiscible in equilibrium, with atomic-level intermixing. The magnetic properties of the new alloy are discussed in comparison with tho...

Nanostructured FePt:B2O3 thin films with perpendicular magnetic anisotropy

Magnetic reversal of ultra-thin films with planar magnetization

Classical spin simulations are used to study magnetic reversal in ultra-thin (16 monolayers) films with planar magnetization and surface roughness typical of epitaxially grown samples. Reduced site symmetry at surface steps leads to strong, local anisotropies that both nucleate reversal and pin domain wall motion. The results we obtain from realistic models with periodic roughness are interpret...