反強磁性ナノ構造におけるスピントルクと電圧生成

山根 結太*; 家田 淳一

まぐね, 13(5), p.235 - 241, 2018/10

AA2018-0148.pdf:0.6MB

We overview the recent theoretical development on spin-transfer torque in antiferromagnetic nanostructures and related subjects. As antiferromagnetic materials are generating more attention lately due to their potential to play pivotal roles in spintronics applications, demands are rising for reliable methods to control and detect antiferromagnetic textures and their dynamics. While antiferromagnets are largely insensitive to external magnetic fields in general, electrical means are proving to be capable of offering promising ways to access the antiferromagnetic dynamics. We discuss in this article the possibility of manipulation and observation of dynamical antiferromagnetic textures by electrical current and voltage.

Who saw spin

家田 淳一

no journal, , 

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.