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
相关论文
共 38 条
[1]   New directions in the pursuit of Majorana fermions in solid state systems [J].
Alicea, Jason .
REPORTS ON PROGRESS IN PHYSICS, 2012, 75 (07)
[2]   Upper critical fields of the 3-k superconducting phase of Sr2RuO4 [J].
Ando, T ;
Akima, T ;
Mori, Y ;
Maeno, Y .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1999, 68 (05) :1651-1656
[3]   Resistivity in the Vicinity of a van Hove Singularity: Sr2RuO4 under Uniaxial Pressure [J].
Barber, M. E. ;
Gibbs, A. S. ;
Maeno, Y. ;
Mackenzie, A. P. ;
Hicks, C. W. .
PHYSICAL REVIEW LETTERS, 2018, 120 (07)
[4]   Gap structure of the spin-triplet superconductor Sr2RuO4 determined from the field-orientation dependence of the specific heat -: art. no. 047002 [J].
Deguchi, K ;
Mao, ZQ ;
Yaguchi, H ;
Maeno, Y .
PHYSICAL REVIEW LETTERS, 2004, 92 (04) :4
[5]   Effects of deep superconducting gap minima and disorder on residual thermal transport in Sr2RuO4 [J].
Dodaro, John F. ;
Wang, Zhiqiang ;
Kallin, Catherine .
PHYSICAL REVIEW B, 2018, 98 (21)
[6]   Polarized-neutron scattering study of the Cooper-pair moment in Sr2RuO4 [J].
Duffy, JA ;
Hayden, SM ;
Maeno, Y ;
Mao, Z ;
Kulda, J ;
McIntyre, GJ .
PHYSICAL REVIEW LETTERS, 2000, 85 (25) :5412-5415
[7]   Vertical Line Nodes in the Superconducting Gap Structure of Sr2RuO4 [J].
Hassinger, E. ;
Bourgeois-Hope, P. ;
Taniguchi, H. ;
de Cotret, S. Rene ;
Grissonnanche, G. ;
Anwar, M. S. ;
Maeno, Y. ;
Doiron-Leyraud, N. ;
Taillefer, Louis .
PHYSICAL REVIEW X, 2017, 7 (01)
[8]   Strong Increase of Tc of Sr2RuO4 Under Both Tensile and Compressive Strain [J].
Hicks, Clifford W. ;
Brodsky, Daniel O. ;
Yelland, Edward A. ;
Gibbs, Alexandra S. ;
Bruin, Jan A. N. ;
Barber, Mark E. ;
Edkins, Stephen D. ;
Nishimura, Keigo ;
Yonezawa, Shingo ;
Maeno, Yoshiteru ;
Mackenzie, Andrew P. .
SCIENCE, 2014, 344 (6181) :283-285
[9]   Anisotropic superconducting gap in the spin-triplet superconductor Sr2RuO4:: Evidence from a Ru-NQR study [J].
Ishida, K ;
Mukuda, H ;
Kitaoka, Y ;
Mao, ZQ ;
Mori, Y ;
Maeno, Y .
PHYSICAL REVIEW LETTERS, 2000, 84 (23) :5387-5390
[10]   Spin polarization enhanced by spin-triplet pairing in Sr2RuO4 probed by NMR [J].
Ishida, K. ;
Manago, M. ;
Yamanaka, T. ;
Fukazawa, H. ;
Mao, Z. Q. ;
Maeno, Y. ;
Miyake, K. .
PHYSICAL REVIEW B, 2015, 92 (10)