[14a-A501-1~13] 10.2 Fundamental and exploratory device technologies for spin

[14a-A501-10] Spin motive force induced by magnetic resonance of ferrimagnetic GdFeCo films

〇Shun Fukuda¹, Satoshi Sumi¹, Kenji Tanabe¹, Hiyoyuki Awano¹ (1.Toyota Tech Inst.)

Keywords:Spin motive force, ferrimagnetic GdFeCo, magnetic resonance

Spin motive force can directly convert magnetic energy into electric energy and it is known for its high power generation efficiency. But, experiments are limited to a part of transition metals, and the relationship between material constant and output is not clear. For this reason, we experimented with ferrimagnetic GdFeCo. When the transition metal FeCo was doped with Gd, a point where the output was larger than that of FeCo alone was observed. Then we calculated the analytical calculation using the LLG equation, it can be explained that the trajectory of the precession of the magnetization has changed and the output has increased.