Reentrant Meissner effect in the organic conductor κ-(BEDT-TTF)2Cu[N(CN)2]Cl under pressure
H. Posselt, H. Müller, K. Andres, G. Saito
DOI 10.1103/PhysRevB.49.15849 · Physical Review B
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Abstract
Metallic κ-(BEDT-TTF)2Cu[N(CN2]Cl turns semiconducting and insulating at low temperatures and ambient pressure and enters a ferrimagneticlike state below 20 K. Under hydrostatic pressure (p≃300 bar), previous investigations have shown that the metallic state can be stabilized and that reentrant superconducting behavior can be observed (by means of resistivity measurements) in a rather wide pressure range. By means of dc susceptibility measurements, we show that reentrant volume superconductivity actually exists only in a narrow critical pressure range. In contrast to previously found reentrant superconductors, this material does not contain rare-earth magnetic moments.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| (BEDT-TTF)2Cu[N(CN)2]Br Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 12 | Pressure not reported | unknown |
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