Tomoya Nakatani is a Principal Researcher at Research Center for Magnetic and Spintronic Materials, NIMS. He obtained his Ph.D. degree from the University of Tsukuba in 2011 and joined NIMS as a Senior Researcher in 2016. His research covers magnetic recording, spintronics, magnetic sensors, and recently interconnect materials.

Interconnects, the wires that connect transistors, are one of the major bottlenecks in semiconductor device performance. At the 10-nm scale, due to the dominant surface scattering of conduction electrons, copper is no longer an efficient conductor. CoSn kagome metal exhibits unique electronic transport characteristics in which low resistivity is confined to a specific crystallographic orientation. This directional transport property makes CoSn a promising candidate for interconnects in advanced logic device technology nodes. This talk reviews recent progress in CoSn thin film studies and outlines the key requirements for realizing CoSn interconnects.