Presentation Information
[10p-PA2-35]Crystal structure analysis of single crystal Ir(001) thin films using Photoelectron Momentum Microscope
〇(M1)Hayato Yabe1, Eri Hashimoto1, Fumihiko Matsui2, Shinji Koh1 (1.Aoyama Gakuin Univ., 2.UVSOR, Institute for Molecular Science.)
Keywords:
Iridium,Sputtering,Photoelectron Momentum Microscope
Iridium (Ir) is a transition metal belonging to the platinum-group metals. The Ir(111) surface is widely used as a growth substrate for CVD-grown graphene. Furthermore, Ir(001) is used as a substrate for diamonds. In addition, a single monolayer of Au deposited on the Ir(001) surface forms a two-dimensional spin filter[2]. Combined with a photoelectron momentum microscope, this enables high-resolution spin-resolved photoemission spectroscopy. Because bulk single-crystal Ir is prohibitively expensive, the fabrication of high-quality Ir thin films is highly desirable as a practical alternative. In this study, we fabricated and characterized epitaxial Ir(001) thin films with high surface flatness and crystallinity.