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• 1. [Article] Enhanced magnetic quantum oscillations in the mixed state of a two-dimensional organic superconductor

  We report on de Haas–van Alphen (dHvA) oscillations observed in the mixed state of the organic superconductor β″–(BEDT-TTF)₂SF₅CH₂CF₂SO₃ (BEDT-TTF stands for bisethylenedithio-tetrathiafulvalene) utilizing ...

  Citation × Citation Citation Abstract Copy Title: Enhanced magnetic quantum oscillations in the mixed state of a two-dimensional organic superconductor Author: Wosnitza, J., Hagel, J., Meeson, P. J., Bintley, D., Schlueter, J. A., Mohtasham, Javid, Winter, Rolf Walter, Gard, Gary L. Year: 2003 We report on de Haas–van Alphen (dHvA) oscillations observed in the mixed state of the organic superconductor β″–(BEDT-TTF)₂SF₅CH₂CF₂SO₃ (BEDT-TTF stands for bisethylenedithio-tetrathiafulvalene) utilizing the field-modulation technique and torque magnetometry. At low temperatures (30 mK), the dHvA signal persists down to 1.4 T well below the upper critical field Bc2≈3.6T. Contrary to most theoretical predictions and previous experimental findings, no additional damping of the dHvA-oscillation amplitude, but a reduced damping of the dHvA signal is found. This highly unusual effect might indicate a reduced quasiparticle scattering rate or an additional oscillatory contribution in the superconducting state. Title: Enhanced magnetic quantum oscillations in the mixed state of a two-dimensional organic superconductor Author: Wosnitza, J., Hagel, J., Meeson, P. J., Bintley, D., Schlueter, J. A., Mohtasham, Javid, Winter, Rolf Walter, Gard, Gary L. Year: 2003 We report on de Haas–van Alphen (dHvA) oscillations observed in the mixed state of the organic superconductor β″–(BEDT-TTF)₂SF₅CH₂CF₂SO₃ (BEDT-TTF stands for bisethylenedithio-tetrathiafulvalene) utilizing the field-modulation technique and torque magnetometry. At low temperatures (30 mK), the dHvA signal persists down to 1.4 T well below the upper critical field Bc2≈3.6T. Contrary to most theoretical predictions and previous experimental findings, no additional damping of the dHvA-oscillation amplitude, but a reduced damping of the dHvA signal is found. This highly unusual effect might indicate a reduced quasiparticle scattering rate or an additional oscillatory contribution in the superconducting state. Close