[18a-S2_201-1~10] 10.1 Emerging materials in spintronics and magnetics (including fabrication and characterization methodologies)

10:30 AM - 10:45 AM JST(1:30 AM - 1:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation AwardEnglish Presentation

[18a-S2_201-6] Magnetization dynamics and thermo-magnetic effects in chiral magnetic Pd/Co multilayers

〇(B)Haruka Ogawa¹, Shuta Nakao², Yasuo Takeichi³, Bowen Qiang¹, Toshio Miyamachi¹, Masaki Mizuguchi¹ (1.Nagoya Univ., 2.Osaka Univ., 3.KEK)

Keywords:

skyrmion,magnetic multilayers,magnetic force microscopy

We report the observation of magnetic skyrmions in Co/Pd multilayers fabricated by magnetron sputtering on an MgO (001) substrate. The skyrmion magnetic structure was observed by magnetic force microscopy (MFM), and the thermal transport properties (Nernst effect) were measured by Physical Property Measurement System (Quantum Design Co.) using an all-on-chip device. Magnetic structures taken by MFM potentially representing skyrmions were confirmed in the remanent state after applying a magnetic field near saturation (>= 2.5 kOe). Furthermore, the evolution of magnetic structures under an external magnetic field was observed by XMCD-transmission imaging performed at NanoTerasu. The relation between skyrmion structures and the ANE will also be discussed in detail.