Cited by 24Iron-based superconductors researchPhysics of Superconductivity and MagnetismFusion materials and technologies

Scaling laws for ion irradiation effects in iron-based superconductors

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Torsello, Daniele, Gozzelino, Laura, Gerbaldo, Roberto, Tamegai, Tsuyoshi, Ghigo, Gianluca·2021·Scientific Reports

Abstract

We report on ion irradiation experiments performed on compounds belonging to the $$\hbox {BaFe}_2\hbox {As}_2$$ BaFe 2 As 2 family, each one involving the partial substitution of an atom of the parent compound (K for Ba, Co for Fe, and P for As), with an optimal composition to maximize the superconducting critical temperature $$T_c$$ T c . Employed ion beams were 3.5-MeV protons, 250-MeV Au ions, and 1.2-GeV Pb ions, but additional data from literature are also considered, thus covering a wide range of ions and energies. Microwave characterization based on the use of a coplanar waveguide resonator allowed us to investigate the irradiation-induced $$T_c$$ T c degradation, as well as the increase of normal state resistivity and London penetration depth. The damage was quantified in terms of displacements per atom (dpa). From this broad and comprehensive set of experimental data, clear scaling laws emerge, valid in the range of moderate irradiation-induced disorder (dpa up to 5 $$\times$$ × 10 $$^{-3}$$ - 3 were investigated). In these conditions, linear trends with dpa were found for all the modification rates, while a power law dependence on the ion energy was found for heavy-ion irradiation. All these scaling laws are reported and discussed throughout the paper.

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Crossref · 10.1038/s41598-021-84699-4

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  • These HEA films exhibit resistance to displacement damage more than 1000 times greater than that of other promising superconductors such as Nb3Sn, MgB2, iron-based superconductors, and high-Tc cuprate superconductors.

    “Notably, these HEA fi lms exhibit resistance to displacement damage that is more than 1000 times greater than that of other promising superconductors with technological applications, such as Nb3Sn, MgB2, iron-based superconductors, and highT c cuprate superconductors 99 -102 .”

    From Recent advances in high-entropy superconductors (2024) · cites this paper as [102]

    The Conclusions (page unavailable) report irradiation-induced damage in iron-based BaFe2As2 superconductors, quantified as displacements per atom. Neither that passage nor the additional passages searched for HEA films and the 1000-fold comparison address whether HEA films are more resistant than the listed superconductors. (LLM, conf=0.76)

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Research works printed but not linked: 1

  1. [33]Takahashi, A., M.Sc. Thesis, The University of Tokyo (2019).

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Authors
Torsello, D., Gozzelino, L., Gerbaldo, R., Tamegai, T., & Ghigo, G.
Affiliations
  • Politecnico di Torino (IT)
  • The University of Tokyo (JP)
Corresponding author
Torsello, Daniele
Venue
Scientific Reports
Published
2021-03-12
Volume
11
Issue
1
Pages
5818-5818
ISSN
2045-2322 (ISSN-L)
OpenAlex
W3135751016
Cited by
24
References
49
Citations by year
2026: 2 · 2025: 4 · 2024: 4 · 2023: 1 · 2022: 8 · 2021: 5
FWCI
1.10
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • PORTO@Iris (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Ministero dell'Istruzione dell'Università e della Ricerca (201785KWLE)
  • Japan Society for the Promotion of Science (17H01141)
Topics
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Iron-based superconductors research
  • Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Physics of Superconductivity and Magnetism
  • Physical Sciences › Materials Science › Materials Chemistry › Fusion materials and technologies
Keywords
ion irradiation, iron-based superconductors, scaling laws, displacement per atom, irradiation-induced disorder, normal state resistivity, London penetration depth, heavy ion irradiation, ion energy dependence, proton irradiation, coplanar waveguide resonators, KFe2As2

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