Scaling laws for ion irradiation effects in iron-based superconductors

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...

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Autores principales:	Daniele Torsello, Laura Gozzelino, Roberto Gerbaldo, Tsuyoshi Tamegai, Gianluca Ghigo
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6ca19a30f48e4379a44596ceb1fd0197
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spelling	oai:doaj.org-article:6ca19a30f48e4379a44596ceb1fd01972021-12-02T13:15:56ZScaling laws for ion irradiation effects in iron-based superconductors10.1038/s41598-021-84699-42045-2322https://doaj.org/article/6ca19a30f48e4379a44596ceb1fd01972021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84699-4https://doaj.org/toc/2045-2322Abstract 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.Daniele TorselloLaura GozzelinoRoberto GerbaldoTsuyoshi TamegaiGianluca GhigoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Daniele Torsello Laura Gozzelino Roberto Gerbaldo Tsuyoshi Tamegai Gianluca Ghigo Scaling laws for ion irradiation effects in iron-based superconductors
description	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.
format	article
author	Daniele Torsello Laura Gozzelino Roberto Gerbaldo Tsuyoshi Tamegai Gianluca Ghigo
author_facet	Daniele Torsello Laura Gozzelino Roberto Gerbaldo Tsuyoshi Tamegai Gianluca Ghigo
author_sort	Daniele Torsello
title	Scaling laws for ion irradiation effects in iron-based superconductors
title_short	Scaling laws for ion irradiation effects in iron-based superconductors
title_full	Scaling laws for ion irradiation effects in iron-based superconductors
title_fullStr	Scaling laws for ion irradiation effects in iron-based superconductors
title_full_unstemmed	Scaling laws for ion irradiation effects in iron-based superconductors
title_sort	scaling laws for ion irradiation effects in iron-based superconductors
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/6ca19a30f48e4379a44596ceb1fd0197
work_keys_str_mv	AT danieletorsello scalinglawsforionirradiationeffectsinironbasedsuperconductors AT lauragozzelino scalinglawsforionirradiationeffectsinironbasedsuperconductors AT robertogerbaldo scalinglawsforionirradiationeffectsinironbasedsuperconductors AT tsuyoshitamegai scalinglawsforionirradiationeffectsinironbasedsuperconductors AT gianlucaghigo scalinglawsforionirradiationeffectsinironbasedsuperconductors
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Scaling laws for ion irradiation effects in iron-based superconductors

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