Coexistence of bulk superconducting and antiferromagnetic order in the spin-ladder system Sr2Ca12Cu24O41
S. Vanishri, D. Braithwaite, B. Salce, C. Marin, J. Flouquet
DOI 10.1103/PhysRevB.81.094511 · Physical Review B
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Abstract
Combined ac-susceptibility and ac-calorimetry measurements under hydrostatic pressure on new single crystals of the spin-ladder system Sr14−xCaxCu24O41 (x=12) in good hydrostatic conditions allow us to unambiguously establish the phase diagram. We show that bulk superconductivity and antiferromagnetic order coexist over a wide pressure range, which is quite rare in strongly correlated systems where the same electrons participate in superconductivity and magnetic order. We suggest that this is possible by the special microscopic structure of this material, containing ladders and chains, with a weak coupling between the two.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Sr2Ca12Cu24O41 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 10 | 5 GPa | onset |
| Sr2Ca12Cu24O41 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 10 | 5 GPa | midpoint |
| Sr14-xCaxCu24O41 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 10 | 5 GPa | onset |
| CeRhIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| HgBa2Ca4Cu5Oy 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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