Superconducting, Fermi surface, and magnetic properties in SrTGe₃ and EuTGe₃ (T: transition metal) with the Rashba-type tetragonal structure

详细信息    查看全文

• 作者：Masashi Kakihana^a ; Hiromu Akamine^a ; Keisuke Tomori^a ; Kengo Nishimura^a ; Atsushi Teruya^a ; Ai Nakamura^a ; ^b ; Fuminori Honda^b ; Dai Aoki^b ; Miho Nakashima^c ; Yasushi Amako^c ; Kazuyuki Matsubayashi^d ; Yoshiya Uwatoko^d ; Tetsuya Takeuchi^e ; Takanori Kida^f ; Masayuki Hagiwara^f ; Yoshinori Haga^g ; Etsuji Yamamoto^g ; Hisatomo Harima^h ; Masato Hedoⁱ ; Takao Nakamaⁱ ; ^{nakama@sci.u-ryukyu.ac.jp} ; Yoshichika Ōnukiⁱ
• 关键词：Eu compounds ; Crystal growth ; Fermi surfaces ; Superconductivity ; Rashba-type non-centrosymmetric tetragonal structure ; de Haas-van Alphen effect ; Pressure effect ; High-field magnetization
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：694
• 期：Complete
• 页码：439-451
• 全文大小：3924 K
• 卷排序：694

文摘

We grew single crystal of SrTGe3 (T: Rh, Ir, Ni, Pd, and Pt) and Eu-divalent antiferromagnets EuTGe3 (T: Co, Rh, Ir, Ni, Pd, and Pt) by the In-flux method. The electrical resistivity, specific heat, magnetic susceptibility, magnetization, and dHvA effect have been measured. All the SrTGe3 compounds are superconductors with Tsc = 0.46–1.38 K. We studied precisely the magnetic properties of EuIrGe3 by measuring the magnetization in pulse fields of up to 300 kOe, and constructed the magnetic phase diagram. We carried out the pressure experiment for EuCoGe3, EuRhGe3, and EuIrGe3.