[21a-E216-1~4] 10.2 スピン基盤技術・萌芽的デバイス技術

▼ [21a-E216-2] Improved accuracy of voltage-torque-driven magnetization switching using microwave-superimposed voltage pulse

〇Tatsuya Yamamoto¹、Takayuki Nozaki¹、Hiroshi Imamura¹、Shingo Tamaru¹、Kay Yakushiji¹、Hitoshi Kubota¹、Akio Fukushima¹、Yoshishige Suzuki^1,2、Shinji Yuasa¹ (1.AIST、2.Osaka Univ.)

キーワード：voltage-controlled magnetic anisotropy, magnetization switching, magnetic tunnel junction

We investigate voltage-driven magnetization switching using microwave-superimposed voltage pulses. We show that the voltage-torque generated from a microwave voltage effectively counteracts against the magnetization damping, and that significantly improves the controllability of the magnetization switching over a wide range of pulse width.