Phase, Structural Transformations and Magnetic Properties in Nanoscale Pd/Cu/Fe Film Compositions during Heat Treatment in Hydrogen

Abstract

The phase and structural transformations in nanoscale Pd/Fe and Pd/Cu/Fe film compositions during heat treatment in a hydrogen atmosphere in the temperature range of 600 °C-700 °C and two-stage heat treatment (rapid heat annealing and subsequent annealing in hydrogen) were investigated. It was established that as a result of thermally activated solid-state reactions and the formation of a disordered A1-FePd phase, hydrogen atoms are introduced, the volume of the unit cell and the electronic structure of the film change which promotes its transition to the paramagnetic state.