Magnetic skyrmion lattice in Eu-based trillium lattice compound EuPtX (X=Si, Ge)
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*; 辺土 正人*; 仲間 隆男*; 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*; Hedo, Masato*; Nakama, Takao*; 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 , 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 . We will present our neutron and X-ray scattering studies to characterize magnetic skyrmion lattice in this compound.