Seminar: Designer Magnetic Nanographene

ABSTRACT

Quantum spins in solids are usually associated with d- or f-block elements, such as Fe, Ni, and Co, etc. The carbon-based spin has gained increased interests since the isolation of graphene, which is a very promising spin channel material owing to its achievement of room-temperature spin transport as well as long spin coherent lifetime. Moreover, graphene nanostructures possess tremendous interesting physical properties that also make it very attractive for spintronics, including gate-tunable carrier concentration and high electronic mobility.

My talk will showcase the on-surface fabrication of a series of carbon-based spin systems from a designer’s perspective. These systems include monoradical species, polyradical nanographene, and magnetic graphene nanoribbons. Additionally, we demonstrate that some of the correlated spin systems can be probed by nickelocene functionalized scanning tunnelling microscope tip as a single molecule spin sensor.

BIOGRAPHY

Dr. Shaotang Song is a Senior Research Fellow at the National University of Singapore. He earned his Ph.D. from Kyoto University, Japan, where he specialized in organic chemistry, particularly in designing and synthesizing precursor molecules for the fabrication of low-dimensional carbon-based nanostructures. Following his Ph.D., Dr. Song joined the National University of Singapore at the group of Professor Lu Jiong, progressing through the roles of Visiting Research Fellow, Research Fellow, and Senior Research Fellow. During this time, he switched his research focus from organic chemistry to the field of surface science, using scanning tunnelling microscopy for the exploration of on-surface fabrication of low-dimensional magnetic quantum nanographene materials. Dr. Shaotang Song has published more than 30 peer-reviewed papers including Nature, Nature Chemistry, JACS, Chemical Society Review, etc as the leading first author. His contributions to the field have been recognized with several early career awards, including the Young Researcher Award from the Japan Surface Science Society and the Young Independent Research Grant Award from A*Star in Singapore.