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Field induced transition of the AC susceptibility in high-Tc superconductors

  • HTSC—Vortices (Experiment)
  • Published:
Czechoslovak Journal of Physics Aims and scope

Abstract

We have investigated the angle and field dependence of the ac susceptibility in Bi2Sr2CaCu2O8 single crystals at low external fields. The ac field was applied perpendicular to the CuO2 planes. The first and third harmonic of the ac susceptibility exhibit a remarkably sharp transition when the dc field component perpendicular to the CuO2 planes crosses a threshold field Hth. Hth is strongly temperature dependent, but is independent of the parallel field component. We prove that these structures are related to the irreversibility line and propose a simple model which excellently explains the measurement data.

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References

  1. P. Mansky et al., Phys. Rev. Lett.70, 1323 (1993)

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Authors and Affiliations

  1. Physikalisches Institut III, Universität Erlangen-Nürnberg, 91058, Erlangen, Germany

    Oliver Waldmann, Gerald Lichtschlag, Andrei Talalaevskii & Paul Müller

  2. Siemens AG ZFE T EP 4, Box 3220, 91058, Erlangen, Germany

    Florian Steinmeyer

Authors
  1. Oliver Waldmann
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  2. Gerald Lichtschlag
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  3. Florian Steinmeyer
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  4. Andrei Talalaevskii
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  5. Paul Müller
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Waldmann, O., Lichtschlag, G., Steinmeyer, F. et al. Field induced transition of the AC susceptibility in high-Tc superconductors. Czech J Phys 46 (Suppl 3), 1589–1590 (1996). https://doi.org/10.1007/BF02562909

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  • DOI: https://doi.org/10.1007/BF02562909

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