Shubnikov–de Haas effect in the superconducting state of an organic superconductor
J. Wosnitza, S. Wanka, J. Hagel, R. Häussler, H. v. Löhneysen, J. A. Schlueter, U. Geiser, P. G. Nixon, R. W. Winter, G. L. Gard
DOI 10.1103/PhysRevB.62.R11973 · Physical Review B
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Abstract
We report the observation of Shubnikov–de Haas (SdH) oscillations in the mixed state of the organic superconductor β″−(BEDT−TTF)2SF5CH2CF2SO3 (Tc≈4.4 K). At low temperatures the SdH oscillations persist clearly below the upper critical field Bc2(0)≈3.6 T almost down to the field where the resistivity vanishes. Rather unusually, no additional damping of the SdH-signal amplitude — as well as of the de Haas–van Alphen amplitude — is observed in the superconducting state. This indicates that the damping in the vortex state of this quasi-two-dimensional superconductor is different in character to that observed for most three-dimensional materials.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| (BEDT-TTF)2SF5CH2CF2SO3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.4 | Pressure not reported | unknown |
| (BEDT-TTF)2Cu(NCS)2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| NbSe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YNi2B2C 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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