Magnetic properties of Fe/Zr multilayers

Abstract

Measurements of ferromagnetic resonance (FMR), magnetic moment, and torque curves have been made for three series of FelZr multilayers (MLs) with thickness ratio of Fe to Zr sublayers equal to 2:1, 1:1, and 1:2, respectively. We show that Fe\Zr MLs readily yield to amorphization by a solid-state reaction (SSR) during the deposition process. Nevertheless, the resulting structure may be regarded as inhomogeneous one; there still exist some ferromagnetic phases that we relate to the Fe atoms in various surroundings.

Martensitic transformation in Ni2MnGa films: A ferromagnetic resonance study

“…In general, the angular-dependent variation of ⌬H( H ) is frequently considered 10 to be a combination of the intrinsic linewidth ⌬H 0 ( H ), and two other terms related to ͑i͒ a distribution of the effective magnetization ␦(4M eff ) and ͑ii͒ a spatial variation ␦ of the c-axis orientation around the film normal. The more details can be found in a paper by Farle et al 13 For the most of magnetic films, 14 only the intrinsic linewidth is important while, in case of our Ni 2 MnGa films with an inhomogeneous structure in the martensitic phase and a substantial distribution of the c axis, these additional terms should be taken into account. Hence, the experimental angular dependence of linewidth, ⌬H( H ), is expressed as 13…”