The 68th JSAP Spring Meeting 2021

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Oral presentation

10 Spintronics and Magnetics » 10.3 Spin devices, magnetic memories and storages

[17p-Z19-8~24] 10.3 Spin devices, magnetic memories and storages

Wed. Mar 17, 2021 3:15 PM - 7:45 PM Z19 (Z19)

Shun Kanai(Tohoku Univ.), Yuki Hibino(AIST)

5:45 PM - 6:00 PM

▲ [17p-Z19-17] Single-crystal Fe/MgO/Fe magnetic tunnel junctions with
a room temperature magnetoresistance of 417%

〇(P)Thomas Scheike1, Qingyi Xiang1, Zhenchao Wen1, Hiroaki Sukegawa1, Tadakatsu Ohkubo1, Kazuhiro Hono1, Seiji Mitani1 (1.NIMS)

Keywords:MTJ, TMR, MgO

In this presentation I show our results on Fe/MgO/Fe MTJs with a TMR ratio up to 417% at RT, almost doubling previous reports in Fe/MgO/Fe. I will present TMR oscillations, transport and structural characteristics of the measured MTJs.