High Throughput Optimization of Y-Type Magnetoplumbite Epitaxial thin Film Growth by Combinatorial Pulsed Laser Deposition Technique

Thin films of Y-type magnetoplumbite (Ba 2 Co 2 Fe 12 O 22 : Co 2 Y) with such a huge unit cell length as 43.5 Å has been successfully fabricated for the first time with the aid of combinatorial optimization of pulsed laser deposition process. Planning a thickness gradient CoO buffer layer on MgAl 2 O 4 (111) substrate was very effective for prevent the phase separation of Co deficient impurity (BaFe 2 O 4 ) to reside in the formation of desired Co 2 Y phase.From the TEM analysis, the CoO buffer layer of optimum thickness was incorporated into the Co 2 Y film to make theinterface with the make an atomically sharp.