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Study of geometrical surface barrier in Bi2Sr2CaCu2Ox single crystal by scanning spin probe

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

Abstract

The field distribution in the Bi2Sr2CaCu2Ox rectangular strip, placed into perpendicular magnetic field, was studied. The measurement of local field magnitude was made using the ESR microprobe moved over the sample surface. Our results confirm the existence of geometrical barrier for vortex motion, which is due to edge shielding current, even at high magnetic fields. Changing the temperature we were able to observe the crossover of the magnetic field profile from the dome shape, typical for geometrical barrier (T>30K), to the steep front penetration picture (T<25K) of the bulk pinning case.

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References

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Authors and Affiliations

  1. Kazan Institute for Technical Physics, 420029, Kazan, Russia

    R. I. Khasanov, Yu. I. Talanov & G. B. Teitel’baum

Authors
  1. R. I. Khasanov
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  2. Yu. I. Talanov
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  3. G. B. Teitel’baum
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Additional information

The work was supported in part by the Russian Council on HTSC research under Grant No 940045.

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Khasanov, R.I., Talanov, Y.I. & Teitel’baum, G.B. Study of geometrical surface barrier in Bi2Sr2CaCu2Ox single crystal by scanning spin probe. Czech J Phys 46 (Suppl 3), 1537–1538 (1996). https://doi.org/10.1007/BF02562883

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  • DOI: https://doi.org/10.1007/BF02562883

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