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	Evidence for multi-gap symmetry from grain boundary effects in polycrystalline ba0.6k0.4fe2as2 microbridge
	Huang,Ya1,2; Zhou,Xian-Jing1,2; Gao,Zhao-Shun2,3; Wu,Hao2,4; He,Ge5; Yuan,Jie5; Jin,Kui5; Pereira,Paulo J6,7; Ji,Min1,2; An,De-Yue1,2
刊名	Superconductor science and technology
	2016-11-02
卷号	30期号:1
关键词	Grain boundary effect Josephson junction Multi-gap symmetry Iron-based superconductors 74.70.xa 74.20.rp 74.25.f- 74.78.na
ISSN号	0953-2048
DOI	10.1088/0953-2048/30/1/015006
英文摘要	Abstract we studied the grain boundaries within mechanically formed polycrystalline ba 0.6 k 0.4 fe2as2 micro-bridges. by tunneling current across grain boundaries, current–voltage characteristics (ivcs) demonstrated the typical josephson weak links behavior in micro-bridges. shapiro steps were observed for the junctions under the microwave radiation at 10 ghz. the temperature dependence of the critical current ic was observed as a shoulder, corresponding to a multi-gap symmetry but not a single-gap s-wave or d-wave.
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:0953-2048-30-1-015006
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2373533
专题	物理研究所
作者单位	1.Research Institute of Superconductor Electronics, Nanjing University, Nanjing 210093, People's Republic of China 2.National Institute for Materials Science, Tsukuba 3050047, Japan 3.Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, People's Republic of China 4.Wuhan University, Wuhan 430047, People's Republic of China 5.Condensed Matter Physics, Institute of Physics, Chinese Acadamy of Sciences, Beijing 100190, People's Republic of China 6.INPAC-Institute for Nanoscale Physics and Chemistry, KU Leuven, Celestijnenlaan 200 D, Leuven B-3001, Belgium 7.Theory of Nanomaterials Group, KU Leuven, Leuven B-3001, Belgium
推荐引用方式 GB/T 7714	Huang,Ya,Zhou,Xian-Jing,Gao,Zhao-Shun,et al. Evidence for multi-gap symmetry from grain boundary effects in polycrystalline ba0.6k0.4fe2as2 microbridge[J]. Superconductor science and technology,2016,30(1).
APA	Huang,Ya.,Zhou,Xian-Jing.,Gao,Zhao-Shun.,Wu,Hao.,He,Ge.,...&Wu,Pei-Heng.(2016).Evidence for multi-gap symmetry from grain boundary effects in polycrystalline ba0.6k0.4fe2as2 microbridge.Superconductor science and technology,30(1).
MLA	Huang,Ya,et al."Evidence for multi-gap symmetry from grain boundary effects in polycrystalline ba0.6k0.4fe2as2 microbridge".Superconductor science and technology 30.1(2016).

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