[23p-A201-1~11] 10.2 Fundamental and exploratory device technologies for spin

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation AwardEnglish Presentation

[23p-A201-3] Interfacial Dzyaloshinskii-Moriya interaction in a non-collinear antiferromagnet/heavy metal heterostructure

〇Tomohiro Uchimura^1,2, Yuta Yamane³, Takaaki Dohi¹, Ju-Young Yoon^1,2, Yuma Sato^1,2, Shun Wakabayashi^1,2, Yutaro Takeuchi⁴, Shun Kanai^1,2,5,6, Jun'ichi Ieda⁷, Hideo Ohno^1,2,4,5,8, Shunsuke Fukami^1,2,4,5,8,9 (1.RIEC, Tohoku Univ., 2.Graduate School of Engineering, Tohoku Univ., 3.FRIS, Tohoku Univ., 4.WPI-AIMR, Tohoku Univ., 5.CSIS, Tohoku Univ., 6.DEFS, Tohoku Univ., 7.ASRC, JAEA, 8.CIES, Tohoku univ., 9.InaRIS)

Keywords:

spintronics,antiferromagnet,interfacial DMI

The interfacial Dzyaloshinskii-Moriya interaction (DMI), an antisymmetric exchange interaction, gives rise to exotic spin textures such as chiral Néel domain walls and magnetic skyrmions in ferromagnet/heavy metal (HM) heterostructures. While recent studies suggested an existence of the interfacial DMI in antiferromagnet (AFM)/HM heterostructures as well, systematic investigation of the interfacial DMI for AFM remains to be addressed both theoretically and experimentally. In this work, we show the evidence of the interfacial DMI in a non-collinear AFM Mn₃Sn/HM heterostructure by current-induced hysteresis loop shift measurements.