Chikamatsu gave an oral presentation titled “Crystal structure and electronic property modification of layered calcium ruthenium oxyfluoride thin films” at The 22nd International Vacuum Congress IVC-22 held at Sapporo Convention Center.

Chikamatsu gave an invited talk titled “Layered ruthenium and iridium oxyfluoride thin films fabricated via topochemical fluorination” at The 46th Annual Conference on MAGNETICS in Japan held at Shinshu University Nagano (Engineering) Campus.