Who saw spin

Ieda, Junichi   

I will talk about what I witnessed in spintronics research experience for the last two decades and so, focusing on some key findings and remaining problems. This cannot be an overview of the whole progress of the research field in a complete or equally balanced manner. Instead, it will be a very personal and probably biased view. Nevertheless, I eagerly hope that such a recollection might be helpful for younger generation to step further because physical research would sometimes be progressing in a spiral manner such that old well-discussed topics become a frontline after some decades.