气候变化领域集成服务门户(CCPortal): Nearly quantized conductance plateau of vortex zero mode in an iron-based superconductor

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DOI	10.1126/science.aax0274
	Nearly quantized conductance plateau of vortex zero mode in an iron-based superconductor
	Zhu S.; Kong L.; Cao L.; Chen H.; Papaj M.; Du S.; Xing Y.; Liu W.; Wang D.; Shen C.; Yang F.; Schneeloch J.; Zhong R.; Gu G.; Fu L.; Zhang Y.-Y.; Ding H.; Gao H.-J.
发表日期	2020
ISSN	0036-8075
起始页码	189
结束页码	192
卷号	367 期号:6474
英文摘要	Majorana zero modes (MZMs) are spatially localized, zero-energy fractional quasiparticles with non-Abelian braiding statistics that hold promise for topological quantum computing. Owing to the particle-antiparticle equivalence, MZMs exhibit quantized conductance at low temperature. By using variable-tunnel-coupled scanning tunneling spectroscopy, we studied tunneling conductance of vortex bound states on FeTe0.55Se0.45 superconductors. We report observations of conductance plateaus as a function of tunnel coupling for zero-energy vortex bound states with values close to or even reaching the 2e2/h quantum conductance (where e is the electron charge and h is Planck's constant). By contrast, no plateaus were observed on either finite energy vortex bound states or in the continuum of electronic states outside the superconducting gap. This behavior of the zero-mode conductance supports the existence of MZMs in FeTe0.55Se0.45 © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	iron equipment iron plateau vortex Article controlled study electric conductance energy fractional quasiparticle mathematical computing non Abelian braiding statistics particle antiparticle equivalence physical parameters priority journal quantum computing scanning tunneling spectroscopy statistical analysis Abelia Majorana
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133789
推荐引用方式 GB/T 7714	Zhu S.,Kong L.,Cao L.,et al. Nearly quantized conductance plateau of vortex zero mode in an iron-based superconductor[J]. Science,2020,367(6474).
APA	Zhu S..,Kong L..,Cao L..,Chen H..,Papaj M..,...&Gao H.-J..(2020).Nearly quantized conductance plateau of vortex zero mode in an iron-based superconductor.,367(6474).
MLA	Zhu S.,et al."Nearly quantized conductance plateau of vortex zero mode in an iron-based superconductor".367.6474(2020).