Epitaxial Pt(001), Pt(110), and Pt(111) films on MgO(001), MgO(110), MgO(111), and Al2O3(0001)

Abstract

We have grown epitaxial Pt films, both in oxidizing and nonoxidizing environments, using planar magnetron sputtering onto heated substrates. The out-of-plane orientation relationships we report are Pt(001)∥MgO(001), Pt(110)∥MgO(110), Pt(111)∥MgO(111), and Pt(111)∥Al2O3(0001). We also report a seeded epitaxy technique using Fe for lower temperature epitaxial growth of Pt(001)∥MgO(001).