The 67th JSAP Spring Meeting 2020

Presentation information

Poster presentation

10 Spintronics and Magnetics » 10 Spintronics and Magnetics(Poster)

[14p-PA1-1~74] 10 Spintronics and Magnetics

Sat. Mar 14, 2020 1:30 PM - 3:30 PM PA1 (PA)

1:30 PM - 3:30 PM

[14p-PA1-13] MgO barrier magnetic tunnel junctions with Mn-doped bcc Co electrodes

Kazuma Kunimatsu1, Tomoki Tsuchiya1, 〇Shigemi Mizukami1 (1.Tohoku Univ.)

Keywords:spintronics, magnetic tunnel junctions, tunnel magnetoresistance

We fabricated bcc CoMn/MgO/CoMn magnetic tunnel junctions (MTJs). The MTJs annealed at 350 oC showed the TMR ratio of about 240% at room temperature. The TMR ratio exceeded 630% at low temperature. This low temperature values were larger than those reported in bcc Co or bcc FeCo MgO-MTJs in the past.