The 65h JSAP Spring Meeting, 2018

Presentation information

Oral presentation

CS Code-sharing session » CS6 10.1 & 10.2 & 10.3 Code-sharing session

[19a-D104-1~11] CS6 10.1 & 10.2 & 10.3 Code-sharing session

Mon. Mar 19, 2018 9:00 AM - 12:00 PM D104 (56-104)

Tomohiro Nozaki(Tohoku Univ.)

10:00 AM - 10:15 AM

[19a-D104-5] Precession orbital transition in voltage-driven magnetization switching induced by thermal activation

Tatsuya Yamamoto1, Takayuki Nozaki1, Yoichi Shiota1, Hiroshi Imamura1, Shingo Tamaru1, Kay Yakushiji1, Hitoshi Kubota1, Akio Fukushima1, Yoshishige Suzuki1,2, Shinji Yuasa1 (1.AIST, 2.Osaka Univ.)

Keywords:Voltage-controlled magnetic anisotropy, Magnetization switching, Magnetic tunnel junction

We study the voltage-driven magnetization switching in p-MTJs combining both experiment and numerical simulation. We show that the WER exhibits a local maximum at a certain pulse width as we increase the external magnetic fields. This result is well explained by taking into account transitions of magnetization between two different precession orbits. We also show that the increase of WER due to the orbit transition can be avoided by choosing a proper pulse width.