Proposal for realizing Majorana fermions in chains of magnetic atoms on a superconductor
By S. Nadj-Perge, I. Drozdov, Bogdan Andrei Bernevig, A. Yazdani. 2013
514 citations recorded by the source corpus.
We propose an easy-to-build easy-to-detect scheme for realizing Majorana fermions at the ends of a chain of magnetic atoms on the surface of a superconductor. Model calculations show that such chains can be easily tuned between trivial and topological ground states. In the latter, spatially resolved spectroscopy can be used to probe the Majorana fermion end states. Decoupled Majorana bound states can form even in short magnetic chains consisting of only tens of atoms. We propose scanning tunneling microscopy as the ideal technique to fabricate such systems and to probe their topological properties.
Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics
View Paper: https://www.semanticscholar.org/paper/18fb27c146f9197c8d17d8e85eb21dae1369a746
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In Atomic and Molecular Physics, and Optics
In Condensed Matter Physics
Citations in the corpus
- Milestones toward Majorana-based quantum computing (2015, background): “For instance, with only straightforward modifications, fusion-rule detection and topological qubit validation experiments should be adaptable to transmon-based devices; other setups, such as ferromagnetic atomic chains on superconductors [16,23], may require more dramatic modifications and thus pose”
- Advances and challenges in single-molecule electron transport (2019, unknown): “The intense activity in this field is motivated by theoretical predictions of Majorana modes in spin chains (Choy et al., 2011; Nadj-Perge et al., 2013; Pientka et al., 2013).”
- High-resolution studies of the Majorana atomic chain platform (2016, unknown): “= 2exp (−√a2 + b2 + c2 + 2c√b2 − y2) (16)”
- Probing atomic structure and Majorana wavefunctions in mono-atomic Fe chains on superconducting Pb surface (2015, background): “Such helical fields can either follow from spin orbit interaction combined with Zeeman fields [5, 6, 8] or exchange fields [7, 9] or from a ‘self-tuning’ RKKY interaction between the Fe spins [10–12].”
- Topological superconductors: a review (2016, background): “On a different route, by putting a 1D chain of ferromagnetically-ordered atoms on top of an s-wave superconductor having strong spin-orbit coupling, one can locally create 1D topological superconductivity in the portion of the superconductor beneath the atomic chains [250].”
- InAs-Al hybrid devices passing the topological gap protocol (2022, background): “This phase has been proposed to occur in quasi-one-dimensional systems composed of chains of magnetic atoms on the surface of a superconductor [61–65] and in nanowires that are completely encircled by a superconducting shell in which the order parameter winds around the wire due to the orbital…”