Improved Single-Crystal Growth of Sr2RuO4

被引:37
作者
Bobowski, Jake S. [1 ,2 ]
Kikugawa, Naoki [3 ]
Miyoshi, Takuto [1 ]
Suwa, Haruki [1 ]
Xu, Han-shu [1 ,4 ]
Yonezawa, Shingo [1 ]
Sokolov, Dmitry A. [5 ]
Mackenzie, Andrew P. [5 ]
Maeno, Yoshiteru [1 ]
机构
[1] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan
[2] Univ British Columbia, Dept Phys, Kelowna, BC V1V 1V7, Canada
[3] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050003, Japan
[4] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
[5] Max Plank Inst Chem Phys Solids, D-01187 Dresden, Germany
关键词
Sr2RuO4; superconductivity; single-crystal growth; floating zone; feed rod; SUPERCONDUCTIVITY; PEROVSKITE;
D O I
10.3390/condmat4010006
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
High-quality single crystals are essentially needed for the investigation of the novel bulk properties of unconventional superconductors. The availability of such crystals grown by the floating-zone method has helped to unveil the unconventional superconductivity of the layered perovskite Sr2RuO4, which is considered as a strong candidate of a topological spin-triplet superconductor. Yet, recent progress of investigations urges further efforts to obtain ultimately high-quality crystalline samples. In this paper, we focus on the method of preparation of feed rods for the floating-zone melting and report on the improvements of the crystal growth. We present details of the improved methods used to obtain crystals with superconducting transition temperatures T-c that are consistently as high as 1.4 K, as well as the properties of these crystals.
引用
收藏
页码:1 / 11
页数:11
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