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Magnetic skyrmion lattice in cubic $$f$$-electron magnet EuPtSi

立方晶$$f$$電子磁性体EuPtSiで実現する磁気スキルミオン格子

金子 耕士  ; 田端 千紘*; 竹内 徹也*; Frontzek, M. D.*; 松田 雅昌*; 大石 一城*; 伊藤 孝  ; 宗像 孝司*; 鬼柳 亮嗣 ; 垣花 将司*; 大貫 惇睦*

Kaneko, Koji; Tabata, Chihiro*; Takeuchi, Tetsuya*; Frontzek, M. D.*; Matsuda, Masaaki*; Oishi, Kazuki*; Ito, Takashi; Munakata, Koji*; Kiyanagi, Ryoji; Kakihana, Masashi*; Onuki, Yoshichika*

Magnetic skyrmion, particle-like topologically non-trivial spin textures, attracts surge of interests from both fundamental and application points of view. Since the first discovery in MnSi crystallizing in the cubic space group $$P2_13$$, intensive research on magnetic skyrmions has conducted for materials particularly in this space group. This leads to findings of new class of materials, whereas magnetic ions were mostly limited to d electron systems. Recently, it turned out that f-electron compounds can host magnetic skyrmion lattice as well. The magnetic skyrmions in f-electron compounds possess contrasting characteristics, such as short periodicity and strong anisotropy. Among recent discoveries, cubic chiral compound EuPtSi provides ideal opportunities to compare with d-electron systems as it crystallizes in the same space group as MnSi, namely $$P2_13$$. We will present our neutron and X-ray scattering studies to characterize magnetic skyrmion lattice in this compound.

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