TY - JOUR
T1 - Controllable suppression of the unconventional superconductivity in bulk and thin-film Sr2RuO4 via high-energy electron irradiation
AU - Ruf, Jacob P.
AU - Noad, Hilary M.L.
AU - Grasset, Romain
AU - Miao, Ludi
AU - Zhakina, Elina
AU - McGuinness, Philippa H.
AU - Nair, Hari P.
AU - Schreiber, Nathaniel J.
AU - Kikugawa, Naoki
AU - Sokolov, Dmitry
AU - Konczykowski, Marcin
AU - Schlom, Darrell G.
AU - Shen, Kyle M.
AU - Mackenzie, Andrew P.
N1 - Publisher Copyright:
© 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Open access publication funded by Max Planck Society.
PY - 2024/6/1
Y1 - 2024/6/1
N2 - In bulk Sr2RuO4, the strong sensitivity of the superconducting transition temperature Tc to nonmagnetic impurities provides robust evidence for a superconducting order parameter that changes sign around the Fermi surface. In superconducting epitaxial thin-film Sr2RuO4, the relationship between Tc and the residual resistivity ρ0, which in bulk samples is taken to be a proxy for the low-temperature elastic scattering rate, is far less clear. Using high-energy electron irradiation to controllably introduce point disorder into bulk single-crystal and thin-film Sr2RuO4, we show that Tc is suppressed in both systems at nearly identical rates. This suggests that part of ρ0 in films comes from defects that do not contribute to superconducting pairbreaking and establishes a quantitative link between the superconductivity of bulk and thin-film samples.
AB - In bulk Sr2RuO4, the strong sensitivity of the superconducting transition temperature Tc to nonmagnetic impurities provides robust evidence for a superconducting order parameter that changes sign around the Fermi surface. In superconducting epitaxial thin-film Sr2RuO4, the relationship between Tc and the residual resistivity ρ0, which in bulk samples is taken to be a proxy for the low-temperature elastic scattering rate, is far less clear. Using high-energy electron irradiation to controllably introduce point disorder into bulk single-crystal and thin-film Sr2RuO4, we show that Tc is suppressed in both systems at nearly identical rates. This suggests that part of ρ0 in films comes from defects that do not contribute to superconducting pairbreaking and establishes a quantitative link between the superconductivity of bulk and thin-film samples.
UR - https://www.scopus.com/pages/publications/85201734996
U2 - 10.1103/PhysRevResearch.6.033178
DO - 10.1103/PhysRevResearch.6.033178
M3 - Article
AN - SCOPUS:85201734996
SN - 2643-1564
VL - 6
JO - Physical Review Research
JF - Physical Review Research
IS - 3
M1 - 033178
ER -