Single crystal growth and unique electronic states of cubic chiral EuPtSi and related compounds

立方晶カイラル構造をもつEuPtSi及び関連物質の単結晶育成と特異な電子状態

大貫 惇睦*; 垣花 将司*; 伊覇 航*; 仲井間 憲李*; 青木 大*; 仲村 愛*; 本多 史憲*; 中島 美帆*; 天児 寧*; 郷地 順*; 上床 美也*; 中村 翔太*; 榊原 俊郎*; 竹内 徹也*; 芳賀 芳範   ; 池田 浩章*; 播磨 尚朝*; 辺土 正人*; 仲間 隆男*

Onuki, Yoshichika*; Kakihana, Masashi*; Iha, Wataru*; Nakaima, Kenri*; Aoki, Dai*; Nakamura, Ai*; Honda, Fuminori*; Nakashima, Miho*; Amako, Yasushi*; Gochi, Jun*; Uwatoko, Yoshiya*; Nakamura, Shota*; Sakakibara, Toshiro*; Takeuchi, Tetsuya*; Haga, Yoshinori; Ikeda, Hiroaki*; Harima, Hisatomo*; Hedo, Masato*; Nakama, Takao*

EuPtSi with the cubic chiral structure exhibits a skyrmion phase under magnetic field. We succeeded in growing high-quality single crystals by the Bridgman method. Fermi surface splitting reflecting the noncentrosymmetric structure was successfully observed experimentally.