[14p-P10-1~98] 10 Spintronics and Magnetics（Poster）

▲ [14p-P10-89] Time-resolved x-ray magnetic circular dichroism measurements of Fe(Pt,Pd) thin films

〇(M2)Kohei Yamamoto^1,2, Kou Takubo¹, Yasuyuki Hirata^1,2, Yuichi Yokoyama^1,2, Susumu Yamamoto^1,2, Takuo Ohkochi³, Toyohiko Kinoshita³, Takeshi Seki⁴, Koki Takanashi⁴, Shik Shin¹, Iwao Matsuda^1,2, Hiroki Wadati^1,2 (1.ISSP, Univ. of Tokyo, 2.Dept. of Phys, Univ. of Tokyo, 3.JASRI, 4.IMR, Tohoku Univ.)

Keywords:time-resolved measurement, x-ray magnetic circular dichroism

Magnetization dynamics in material attracts much attention due to its various physical phenomena such as ultrafast demagnetization and magnetization reversal or its potential of application for spintronic devices. Visible laser of a few eV is widely used as a probe of magnetization dynamics, however, synchrotron x-ray, especially soft x-ray which is element specific probe by using resonant process between 3d state and 2p core level, is seldom used for time-resolved measurement. In this presentation, we report that we developed time-resolved x-ray circular dichroism (XMCD) measuring system at BL07LSU, SPring-8 and succeeded in measuring magnetization dynamics in perpendicularly magnetized Fe(Pt, Pd) thin films.