Superconducting fluctuation effect on the de Haas-van Alphen oscillations in 
the vortex liquid state of quasi-2D superconductors

Maniv, T.; Zhuravlev, V.; Vagner, I. D.; Wyder, P.

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Superconducting fluctuation effect on the de Haas-van Alphen oscillations in the vortex liquid state of quasi-2D superconductors

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Maniv, T.
High Magnetic Field Laboratory, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Vagner, I. D.
High Magnetic Field Laboratory, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Wyder, P.
High Magnetic Field Laboratory, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Maniv, T., Zhuravlev, V., Vagner, I. D., & Wyder, P. (2002). Superconducting fluctuation effect on the de Haas-van Alphen oscillations in the vortex liquid state of quasi-2D superconductors. Physica B, 315(1-3), 47-55.

Cite as: https://hdl.handle.net/21.11116/0000-000E-EA57-9

Abstract

The damping of the de Haas-van Alphen (dHvA) oscillations in
the mixed state of a 2D superconductor is studied within a new
analytical approach to the problem of vortex-lattice
fluctuations at high magnetic fields. It is shown that in the
'liquid' state around mean field H-e2(T), averaging over phase
fluctuations leads to damping of the dHvA osillations, which
can be well described by the random vortex lattice model. The
calculated damping rate is in a good quantitative agreement
with recent experiments carried out on a quasi-2D organic
superconductor. It is predicted that deep in the mixed state,
the freezing into an ordered vortex lattice is accompanied by a
sharp upward turn in the slope of the 'Dingle plot'. (C) 2002
Elsevier Science B.V. All rights reserved.