气候变化领域集成服务门户(CCPortal): Evidence for dispersing 1D Majorana channels in an iron-based superconductor

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DOI	10.1126/science.aaw8419
	Evidence for dispersing 1D Majorana channels in an iron-based superconductor
	Wang Z.; Rodriguez J.O.; Jiao L.; Howard S.; Graham M.; Gu G.D.; Hughes T.L.; Morr D.K.; Madhavan V.
发表日期	2020
ISSN	0036-8075
起始页码	104
结束页码	108
卷号	367 期号:6473
英文摘要	The possible realization of Majorana fermions as quasiparticle excitations in condensed-matter physics has created much excitement. Most studies have focused on Majorana bound states; however, propagating Majorana states with linear dispersion have also been predicted. Here, we report scanning tunneling spectroscopic measurements of crystalline domain walls (DWs) in FeSe0.45Te0.55. We located DWs across which the lattice structure shifts by half a unit cell. These DWs have a finite, flat density of states inside the superconducting gap, which is a hallmark of linearly dispersing modes in one dimension. This signature is absent in DWs in the related superconductor, FeSe, which is not in the topological phase. Our combined data are consistent with the observation of dispersing Majorana states at a p-phase shift DW in a proximitized topological material. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	iron derivative iron selenide unclassified drug crystal structure dispersion spectroscopy superconductivity topology angle resolved photoemission spectroscopy Article conductance density density of states differential conductance dispersion domain wall fermion high temperature magnetism Majorana bound states nanofabrication priority journal scanning tunneling spectroscopy 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/133809
推荐引用方式 GB/T 7714	Wang Z.,Rodriguez J.O.,Jiao L.,et al. Evidence for dispersing 1D Majorana channels in an iron-based superconductor[J]. Science,2020,367(6473).
APA	Wang Z..,Rodriguez J.O..,Jiao L..,Howard S..,Graham M..,...&Madhavan V..(2020).Evidence for dispersing 1D Majorana channels in an iron-based superconductor.,367(6473).
MLA	Wang Z.,et al."Evidence for dispersing 1D Majorana channels in an iron-based superconductor".367.6473(2020).