This　paper　states　the　epitaxial　growth　of　La2Zr2O7(LZO)　buffer　layers　on　the　cube　textured　nickel　alloy　substrate,　with　the　nitrate　as　the　precursor.　The　solution　stability　and　the　heat　treatment　processing　were　discussed　respectively.　The　solution　of　hydrated　nitrates　dissolved　in　ethanol　being　a　sol　at　a　higher　temperature,　the　precursor　was　pre-dried　and　methanol　was　substituted　with　a　higher　dielectric　constant.　Because　of　the　multi-step　decomposition　of　the　nitrates,　a　multi-step　heat　treatment　route　was　followed,　the　complete　decomposition　of　the　intermediate　phases　being　essential.　The　orientation　analysis　shows　a　cube　textured　film　with　the　FWHM　values　of　the　(222)　phi-scan　and　of　the　(400)　omega-scan　being　8.50　degrees　and　8.10　degrees　respectively.　The　SEM　image　shows　a　dense　and　homogeneous　film　without　cracks　and　holes.　The　analysis　above　indicates　that　the　present　route　is　feasible　for　the　preparation　of　LZO　buffer　layers.　(C)　2012　Published　by　Elsevier　B.V.　Selection　and/or　peer-review　under　responsibility　of　the　Guest　Editors.