Chemical Solution Deposition of LaMnO 3 Buffer Layers for Coated Conductors

Chemical solution deposition (CSD) is used to prepare LaMnO (LMO) buffer layers on different substrates. The results show that biaxially oriented LMO films can be successfully prepared on single-crystal SrTiO₃ (STO) and STO buffered single-crystal LaAlO₃ substrates when humid 4%H₂-N₂ annealing atmosphere is used. The orientation of LMO-Ni is (110)-oriented even when the annealing atmosphere is humid 4%H₂-N₂. When CSD-derived STO-Ni is used as a template, biaxially oriented LMO buffer layers with c-axis orientation can be successfully prepared. The results provide an effective route to prepare LMO-based buffer layers using CSD.