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Citations

156

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Grant support

This research was supported by the Scientific Service Units of IST Austria through resources provided by the MIBA Machine Shop and the nanofabrication facility; the NOMIS Foundation and Microsoft; the European Union's Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement 844511; the FETOPEN grant agreement 828948; the European Research Commission through grant agreement HEMs-DAM 716655; the Spanish Ministry of Science and Innovation through grants PGC2018-097018-B-I00, PCI2018-093026, FIS2016-80434-P (AEI/FEDER, EU), RYC-201109345 (Ramon y Cajal Programme), and the Maria de Maeztu Programme for Units of Excellence in R&D (CEX2018-000805-M); and the CSIC Research Platform on Quantum Technologies PTI-001.

Analysis of institutional authors

Prada, EAuthor

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August 23, 2021
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Article
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Nontopological zero-bias peaks in full-shell nanowires induced by flux-tunable Andreev states

Publicated to:SCIENCE. 373 (6550): 82-+ - 2021-07-02 373(6550), DOI: 10.1126/science.abf1513

Authors: Valentini, Marco; Penaranda, Fernando; Hofmann, Andrea; Brauns, Matthias; Hauschild, Robert; Krogstrup, Peter; San-Jose, Pablo; Prada, Elsa; Aguado, Ramon; Katsaros, Georgic;

Affiliations

CSIC, Inst Ciencia Mat Madrid ICMM, Sor Juana Ines de la Cruz 3, Madrid 28049, Spain - Author
IST Austria, Campus 1, A-3400 Klosterneuburg, Austria - Author
Univ Autonoma Madrid, Condensed Matter Phys Ctr IFIMAC, Dept Fis Mat Condensada, E-28049 Madrid, Spain - Author
Univ Autonoma Madrid, Inst Nicolas Cabrera, E-28049 Madrid, Spain - Author
Univ Copenhagen, Microsoft Quantum Mat Lab, Niels Bohr Inst, Kanalvej 7, DK-2800 Lyngby, Denmark - Author
Univ Copenhagen, Niels Bohr Inst, Ctr Quantum Devices, Kanalvej 7, DK-2800 Lyngby, Denmark - Author
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Abstract

A semiconducting nanowire fully wrapped by a superconducting shell has been proposed as a platform for obtaining Majorana modes at small magnetic fields. In this study, we demonstrate that the appearance of subgap states in such structures is actually governed by the junction region in tunneling spectroscopy measurements and not the full-shell nanowire itself. Short tunneling regions never show subgap states, whereas longer junctions always do. This can be understood in terms of quantum dots forming in the junction and hosting Andreev levels in the Yu-Shiba-Rusinov regime. The intricate magnetic field dependence of the Andreev levels, through both the Zeeman and Little-Parks effects, may result in robust zero-bias peaks-features that could be easily misinterpreted as originating from Majorana zero modes but are unrelated to topological superconductivity.

Keywords

Bound-statesSpins

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal SCIENCE due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2021, it was in position 2/74, thus managing to position itself as a Q1 (Primer Cuartil), in the category Multidisciplinary Sciences. Notably, the journal is positioned above the 90th percentile.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations provided by WoS (ESI, Clarivate), it yields a value for the citation normalization relative to the expected citation rate of: 4.12. This indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 14, 2024)

This information is reinforced by other indicators of the same type, which, although dynamic over time and dependent on the set of average global citations at the time of their calculation, consistently position the work at some point among the top 50% most cited in its field:

  • Weighted Average of Normalized Impact by the Scopus agency: 22.44 (source consulted: FECYT Feb 2024)
  • Field Citation Ratio (FCR) from Dimensions: 32.76 (source consulted: Dimensions Jul 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-07-05, the following number of citations:

  • WoS: 57
  • Scopus: 92

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-07-05:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 91.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 91 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 153.75.
  • The number of mentions on the social network Facebook: 1 (Altmetric).
  • The number of mentions on the social network X (formerly Twitter): 20 (Altmetric).
  • The number of mentions in news outlets: 18 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Austria; Denmark.