Bi-stable toggle switching in magnetic tunnel junctions using sub-nanosecond Joule heat pulses | Zendy

Yuma Kaneda | Zendy; Minori Goto | Zendy; Tomohito Mizuno | Zendy; Takekazu Yamane | Zendy; Naomichi Degawa | Zendy; Tsuyoshi Suzuki | Zendy; Atsushi Shimura | Zendy; Susumu Aoki | Zendy; Junichiro Urabe | Zendy; Shinji Hara | Zendy; Hikaru Nomura | Zendy; Yoshishige Suzuki | Zendy

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Bi-stable toggle switching in magnetic tunnel junctions using sub-nanosecond Joule heat pulses

Author(s) -

Yuma Kaneda,

Minori Goto,

Tomohito Mizuno,

Takekazu Yamane,

Naomichi Degawa,

Tsuyoshi Suzuki,

Atsushi Shimura,

Susumu Aoki,

Junichiro Urabe,

Shinji Hara,

Hikaru Nomura,

Yoshishige Suzuki

Publication year - 2022

Publication title -

japanese journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.487

H-Index - 129

eISSN - 1347-4065

pISSN - 0021-4922

DOI - 10.35848/1347-4065/ac4c4f

Subject(s) - magnetization , nanosecond , joule heating , condensed matter physics , materials science , joule (programming language) , magnetic anisotropy , switching time , perpendicular , anisotropy , tunnel magnetoresistance , magnetic field , physics , optoelectronics , ferromagnetism , optics , thermodynamics , geometry , laser , power (physics) , mathematics , quantum mechanics , composite material

In this study, bi-stable toggle magnetization switching in magnetic tunnel junctions induced by electrically injected sub-nanosecond unipolar heat pulses was demonstrated. The switching probability of magnetization between bi-stable states was estimated by applying 0.5 ns voltage pulses and measuring the perpendicular component of the magnetization direction. The maximum switching probability was approximately 70%, suggesting that bi-stable toggle magnetization switching was induced by the torque created by the Joule-heat-induced magnetic anisotropy change. Joule-heat-driven magnetization switching has the potential to become a fundamental technology for fast spin control.

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