▎ 摘　　要

This article introduces the physical characteristics of pure spin current, especially the electrically generated pure spin current in graphene. Pure spin current is essentially different from charge current, since only spin angular momentum flows. A number of studies on the generation of pure spin current in graphene has been intensively performed, and various attractive physical features of the pure spin current have been clarified. Spin currentronics using graphene can open a new frontier in the field of spintronics. (C) 2012 The Japan Society of Applied Physics