Growth of Superconducting Sm(O,F)BiS2 Single Crystals

被引：9
作者：
Kinami, Koki [1 ]
Hanada, Yuji [1 ]
Nagao, Masanori [1 ,6 ]
Miura, Akira [2 ]
Goto, Yosuke [3 ]
Maruyama, Yuki [1 ]
Watauchi, Satoshi [1 ]
Takano, Yoshihiko [4 ,5 ]
Tanaka, Isao [1 ]
机构：
[1] Univ Yamanashi, 7-32 Miyamae, Kofu, Yamanashi 4008511, Japan
[2] Hokkaido Univ, Kita Ku, Kita 13 Nishi 8, Sapporo, Hokkaido 0608628, Japan
[3] Tokyo Metropolitan Univ, Dept Phys, 1-1 Minami Osawa, Hachioji, Tokyo 1920397, Japan
[4] Univ Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058577, Japan
[5] Natl Inst Mat Sci, MANA, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan
[6] Univ Yamanashi, Ctr Crystal Sci & Technol, Miyamae 7-32, Kofu, Yamanashi 4008511, Japan
来源：
CRYSTAL GROWTH & DESIGN | 2019年 / 19卷 / 11期
关键词：
ENHANCEMENT; CE; ND;
D O I：
10.1021/acs.cgd.9b00451
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Superconducting Sm(O,F)BiS2 single crystals were successfully grown using KI-KCI flux. The obtained single crystals were flat-shaped and their size was 500 mu m. The structure and composition of the obtained single crystals were obtained using X-ray diffraction and X-ray spectroscopy. The lattice constants of the obtained Sm(O,F)BiS2 single crystals were evaluated to be a = 3.9672(4) angstrom and c = 13.417(6) angstrom, while their F/(O + F) molar ratio was approximately 0.17. The superconducting transition temperature of the obtained Sm(O,F)BiS2 single crystals was 4.8 K. This was different from the reported Sm(O,F)BiS2 with no superconducting transition above 2 K. The superconducting anisotropies of the upper critical field and effective mass model of the obtained Sm(O,F)BiS2 single crystals were estimated to be approximately 26 and 10, respectively.
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页码：6136 / 6140
页数：5
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