Probing the influence of deposition energy on the magnetic properties of FeCoNiAl0.25Mn0.25 High Entropy Alloy thin films grown by PLD

Magnetic HEA thin films could open up the possibility to develop spintronic devices for use in hostile environments e.g. for high temperature applications. Previous studies have suggested that the energy of deposition may influence the growth of HEA thin films, such that higher energies result in more uniform films with a reduction in phase separation to sub-alloys. By growing films using different deposition energies we have observed a change in the amount of phase separation in our films. However, lab based magnetic measurements do not provide any information about the magnetic uniformity of the films as a function of depth. Using PNR we want to study the depth dependent magnetic uniformity of our films with respect to deposition energy, with a view to develop these films for spintronic applications.