@article{d0199edb34e243bb8b5f523c7380422e,
title = "Observation of a Majorana zero mode in a topologically protected edge channel",
abstract = "Superconducting proximity pairing in helical edge modes, such as those of topological insulators, is predicted to provide a unique platform for realizing Majorana zero modes (MZMs).We used scanning tunneling microscopy measurements to probe the influence of proximity-induced superconductivity and magnetism on the helical hinge states of bismuth(111) films grown on a superconducting niobium substrate and decorated with magnetic iron clusters. Consistent with model calculations, our measurements revealed the emergence of a localized MZM at the interface between the superconducting helical edge channel and the iron clusters, with a strong magnetization component along the edge. Our experiments also resolve the MZM's spin signature, which distinguishes it from trivial in-gap states that may accidentally occur at zero energy in a superconductor.",
author = "Berthold J{\"a}ck and Yonglong Xie and Jian Li and Sangjun Jeon and Bernevig, {B. Andrei} and Ali Yazdani",
note = "Funding Information: Supported by the Gordon and Betty Moore Foundation as part of the EPiQS initiative (GBMF4530), ONR-N00014-17-1-2784, ONR-N00014-14-1-0330, NSF-MRSEC programs through the Princeton Center for Complex Materials DMR-1420541, and NSF-DMR-1608848. Also supported by the Alexander von Humboldt Foundation through a Feodor-Lynen postdoctoral fellowship (B.J.); DOE de-sc0016239, NSF EAGER 1643312, Simons Investigator Grants, ARO MURI W911NF-12-1-0461, the Packard Foundation, and the Schmidt Fund for Innovative Research (B.A.B.); and the National Natural Science Foundation of China under project 11774317 (J.L.). Publisher Copyright: {\textcopyright} 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. The title Science is a registered trademark of AAAS.",
year = "2019",
month = jun,
day = "28",
doi = "10.1126/science.aax1444",
language = "English (US)",
volume = "364",
pages = "1255--1259",
journal = "Science",
issn = "0036-8075",
publisher = "American Association for the Advancement of Science",
number = "6447",
}