KIT | KIT-Bibliothek | Impressum | Datenschutz

Controllable suppression of the unconventional superconductivity in bulk and thin-film Sr2RuO4 via high-energy electron irradiation

Ruf, Jacob P.; Noad, Hilary M. L.; Grasset, Romain; Miao, Ludi; Zhakina, Elina; McGuinness, Philippa H. 1; Nair, Hari P.; Schreiber, Nathaniel J.; Kikugawa, Naoki; Sokolov, Dmitry; Konczykowski, Marcin; Schlom, Darrell G.; Shen, Kyle M.; Mackenzie, Andrew P.
1 Institut für QuantenMaterialien und Technologien (IQMT), Karlsruher Institut für Technologie (KIT)

Abstract:

In bulk Sr2 RuO4, 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 Sr2 RuO4, 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 Sr2 RuO4, 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.

Zugehörige Institution(en) am KIT Institut für QuantenMaterialien und Technologien (IQMT)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 16.08.2024
Sprache Englisch
Identifikator ISSN: 2643-1564
KITopen-ID: 1000174078
HGF-Programm 47.11.02 (POF IV, LK 01) Emergent Quantum Phenomena
Erschienen in Physical Review Research
Verlag American Physical Society (APS)
Band 6
Heft 3
Seiten Art.-Nr.: 033178
Nachgewiesen in Dimensions
Scopus

Verlagsausgabe §
DOI: 10.5445/IR/1000174078
Veröffentlicht am 10.09.2024
Originalveröffentlichung
DOI: 10.1103/PhysRevResearch.6.033178
Scopus
Zitationen: 1
Dimensions
Zitationen: 1
Seitenaufrufe: 22
seit 10.09.2024
Downloads: 8
seit 12.10.2024
Cover der Publikation
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page