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      Observation of Majorana Fermions in Ferromagnetic Atomic Chains on a Superconductor

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          Abstract

          Majorana fermions are predicted to localize at the edge of a topological superconductor, a state of matter that can form when a ferromagnetic system is placed in proximity to a conventional superconductor with strong spin-orbit interaction. With the goal of realizing a one-dimensional topological superconductor, we have fabricated ferromagnetic iron (Fe) atomic chains on the surface of superconducting lead (Pb). Using high-resolution spectroscopic imaging techniques, we show that the onset of superconductivity, which gaps the electronic density of states in the bulk of the Fe chains, is accompanied by the appearance of zero energy end states. This spatially resolved signature provides strong evidence, corroborated by other observations, for the formation of a topological phase and edge-bound Majorana fermions in our atomic chains.

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          • Record: found
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          Efficient iterative schemes forab initiototal-energy calculations using a plane-wave basis set

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            Special points for Brillouin-zone integrations

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              • Record: found
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              Ab initiomolecular dynamics for liquid metals

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                Author and article information

                Journal
                02 October 2014
                Article
                10.1126/science.1259327
                1410.0682

                http://arxiv.org/licenses/nonexclusive-distrib/1.0/

                Custom metadata
                18 pages, 5 figures, and supplementary information. appears in Science (2014)
                cond-mat.mes-hall cond-mat.supr-con

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