화학공학소재연구정보센터
Thin Solid Films, Vol.310, No.1-2, 81-86, 1997
Epitaxial growth of Pd/Fe/Pd trilayers onto sapphire
Trilayers of Pd/Fe/Pd are prepared under various condensation conditions onto sapphire substrates. The growth of the layers is in situ characterized by reflection high-energy electron diffraction (RHEED) and scanning tunneling microscope (STM) investigation. We find that Fe layers with thicknesses of 10 nm epitaxially grow in the bcc phase onto (111) Pd layers at room temperature. The epitaxial relationship is Pd(111)[110]parallel to Fe(110)[111], which corresponds to the Kurdjumov-Sachs relationship for bcc/fcc interfaces. Although epitaxial growth occurs, we find the interface roughness being large, which is considered as originating from island growth.