Fluorine solubility and superconducting properties of Sm(O,F)BiS2 single crystals

被引：2

作者：

Kinami, Koki ^{[1
]}

Hanada, Yuji ^{[1
]}

Nagao, Masanori ^{[1
]}

Miura, Akira ^{[2
]}

Hirai, Shigeto ^{[3
]}

Maruyama, Yuki ^{[1
]}

Watauchi, Satoshi ^{[1
]}

Tanaka, Isao ^{[1
]}

机构：

[1] Univ Yamanashi, 7-32 Miyamae, Kofu, Yamanashi 4000021, Japan

[2] Hokkaido Univ, Kita Ku, Kita-13,Nishi-8, Sapporo, Hokkaido 0608628, Japan

[3] Kitami Inst Technol, Sch Earth Energy & Environm Engn, 165 Koen Cho, Kitami, Hokkaido 0908507, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2021年 / 883卷

关键词：

Rare earth alloys and compounds; Superconductors; Crystal growth; Anisotropy; NEXAFS; X-ray diffraction;

D O I：

10.1016/j.jallcom.2021.160812

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Sm(O,F)BiS2 superconducting single crystals with various nominal F contents have been grown using KI-KCl flux. The solid solution limit of F at the O-site in Sm(O,F)BiS2 single crystals was approximately less than 20 at%. F concentrations of Sm(O,F)BiS2 single crystals were hardly controlled by nominal F contents. It suggests the existence of intrinsic stable phase. Superconductivity was shown at around 5 K. Superconducting transition temperature with zero resistivity were increased with increasing nominal F contents within less than 70 at% in O-site, despite similar F concentration and c-axis lattice constants. (C) 2021 Elsevier B.V. All rights reserved.

引用

页数：5

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