Combinatorial Exploration of Magnetostriction of Fe$_{1-x-y}$Ga$_{x}$M$_{y}$ Ternary Alloys

Fe$_{80}$Ga$_{20}$ is a well known magnetostrictive material, which owes its large magnetostriction to a tetragonal distortion of the Fe lattice from a local ordering of Ga clusters. Here we will report on the synthesis and characterization of thin film combinatorial Fe-Ga-Pd and Fe-Ga-Al ternary spread samples. The composition spread samples were synthesized in an ultra high vacuum (10$^{-9}$ Torr) co-sputtering chamber. Magnetic properties were mapped through the use of a room temperature scanning SQUID and a high throughput magneto optical kerr effect (MOKE) system. Magnetostrictive measurements were performed on micromachined cantilever libraries at room temperature. The correlation between magnetic and magnetostrictive properties across the composition phase diagram of the two systems will be discussed.