Superconducting and magnetic properties of Ru1−yMySr2Eu2−xCexCu2O10+δ (M=Nb,Sn)
S. K. Goh, G. V. M. Williams, E. K. Hemery, H. K. Lee
DOI 10.1103/PhysRevB.74.134506 · Physical Review B
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Abstract
We have investigated the effects of isoelectronic Nb5+ and hole-doping Sn4+ substitutions for Ru5+ on the magnetic and electronic properties of RuSr2Eu2−xCexCu2O10+δ that displays superconductivity and magnetic order. We find a rapid increase in the Meissner state onset temperature when the magnetic order is completely destroyed by Sn substitution, which we show is consistent with the spontaneous vortex phase model. The temperature characterizing the ferromagnetic component, TM*, and the saturation magnetization, Ms, decreases more rapidly for hole-doping by Sn than for nearly isoelectronic doping by Nb. We propose a ferrimagnetic picture to explain the magnetization data.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Ru1-ySnySr2Eu1.2Ce0.8Cu2O10+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | onset |
| Ru1-ySnySr2Eu1.2Ce0.8Cu2O10+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | onset |
| RuSr2R2-xCexCu2O10+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| RuSr2RCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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