Coherent Charge Transport in Ballistic InSb Nanowire Josephson Junctions

doi:10.1038/srep24822

CORC > 北京大学 > 信息科学技术学院

	Coherent Charge Transport in Ballistic InSb Nanowire Josephson Junctions
	Li, S. ; Kang, N. ; Fan, D. X. ; Wang, L. B. ; Huang, Y. Q. ; Caroff, P. ; Xu, H. Q.
刊名	SCIENTIFIC REPORTS
	2016
关键词	SUPERCONDUCTING WEAK LINKS FABRY-PEROT INTERFERENCE ENERGY-GAP STRUCTURE CARBON NANOTUBES MAJORANA FERMIONS QUANTUM DOTS SUPERCURRENT CONDUCTANCE DEVICES TRANSISTORS
DOI	10.1038/srep24822
英文摘要	Hybrid InSb nanowire-superconductor devices are promising for investigating Majorana modes and topological quantum computation in solid-state devices. An experimental realisation of ballistic, phase-coherent superconductor-nanowire hybrid devices is a necessary step towards engineering topological superconducting electronics. Here, we report on a low-temperature transport study of Josephson junction devices fabricated from InSb nanowires grown by molecular-beam epitaxy and provide a clear evidence for phase-coherent, ballistic charge transport through the nanowires in the junctions. We demonstrate that our devices show gate-tunable proximity-induced supercurrent and clear signatures of multiple Andreev reflections in the differential conductance, indicating phase-coherent transport within the junctions. We also observe periodic modulations of the critical current that can be associated with the Fabry-Perot interference in the nanowires in the ballistic transport regime. Our work shows that the InSb nanowires grown by molecular-beam epitaxy are of excellent material quality and hybrid superconducting devices made from these nanowires are highly desirable for investigation of the novel physics in topological states of matter and for applications in topological quantum electronics.; National Basic Research Program of the Ministry of Science and Technology of China [2012CB932703, 2012CB932700]; National Natural Science Foundation of China [11374019, 91221202, 91421303, 61321001]; Ph.D. Program Foundation of the Ministry of Education of China [20120001120126]; Swedish Research Council (VR); SCI(E); PubMed; ARTICLE; nkang@pku.edu.cn; hqxu@pku.edu.cn; 24822; 6
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/434014]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Li, S.,Kang, N.,Fan, D. X.,et al. Coherent Charge Transport in Ballistic InSb Nanowire Josephson Junctions[J]. SCIENTIFIC REPORTS,2016.
APA	Li, S..,Kang, N..,Fan, D. X..,Wang, L. B..,Huang, Y. Q..,...&Xu, H. Q..(2016).Coherent Charge Transport in Ballistic InSb Nanowire Josephson Junctions.SCIENTIFIC REPORTS.
MLA	Li, S.,et al."Coherent Charge Transport in Ballistic InSb Nanowire Josephson Junctions".SCIENTIFIC REPORTS (2016).