Disorder-sensitive superconductivity in the doped iron silicide superconductor (Lu1−xRx)2Fe3Si5 (R=Sc, Y, and Dy)
Tadataka Watanabe, Hiroki Sasame, Hiroaki Okuyama, Kouichi Takase, Yoshiki Takano
DOI 10.1103/PhysRevB.80.100502 · Physical Review B
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Abstract
We studied the effect of nonmagnetic and magnetic impurities on superconductivity in Lu2Fe3Si5 by small-amount substitution of the Lu site and investigated structural, magnetic, and electrical properties of nonmagnetic (Lu1−xScx)2Fe3Si5, (Lu1−xYx)2Fe3Si5, and magnetic (Lu1−xDyx)2Fe3Si5. The rapid depression of Tc by nonmagnetic impurities in accordance with the increase in the residual resistivity reveals the strong pair breaking dominated by disorder.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Lu2Fe3Si5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 6 | Pressure not reported | unknown |
| Lu2Fe3Si5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 6.1 | Pressure not reported | onset |
| Lu2Fe3Si5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 5.8 | Pressure not reported | onset |
| (Lu1-xYx)2Fe3Si5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.2 | Pressure not reported | onset |
| (Lu1-xDyx)2Fe3Si5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.8 | Pressure not reported | onset |
| Y2Fe3Si5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.6 | Pressure not reported | unknown |
| Sc2Fe3Si5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.6 | Pressure not reported | unknown |
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