Magnetic materials and devices for integrated radio-frequency electronics

High-resistivity nanogranular Co–Al–O films for high-frequency applications

This work presents a series of high-resistivity nanogranular Co–Al–O films with maximum resistivity of ? 110?m??cm. The films were deposited using pulsed dc reactive sputtering of a Co72Al28 target in an oxygen/argon ambient. The samples were characterized by scanning electron microscopy (SEM), M-H loop measurements, and s-parameter measurements...

Magnetostatic waves in layered materials and devices

Magnetostatic wave propagation in multilayers of ferro-/ferrimagnetic and nonmagnetic, dielectric slabs is investigated using an effective medium theory and the transfer matrix method. The propagation in multilayers with antiparallel directions of magnetization is analyzed, in particular. Antiparallel multilayers support (overall) bulk waves at...