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    • Keywords


      Magnetization hysteresis; commensurability oscillations; NdBa2Cu3O7

    • Abstract


      Commensurability between inter-vortex distance and crystal lattice constant is investigated by angular dependent magnetization in very pure twinned and twin-free NdBa2 Cu3 Oy single crystals. With increasing temperature the incommensurate states split up and become finally commensurate with half the vortex distance. These new commensurate states are related to a substructure of the intrinsic pinning potential within the unit cell and discussed with respect to temperature, field, anisotropy, and twin structure.

    • Author Affiliations


      H Küpfer1 G Ravikumar1 2 Th Wolf3 AA Zhukov4 5 H Wühl1

      1. Forschungszentrum Karlsruhe, Institut für Technische Physik and Universität Karlsruhe, Postfach 3640, Karlsruhe - 76021, Germany
      2. Technical Physics and Prototype Engineering Division, Bhabha Atomic Research Centre, Mumbai - 400 085, India
      3. Forschungszentrum Karlsruhe, Institut für Festkörperphysik, Postfach 3640, Karlsruhe - 76021, Germany
      4. Department of Physics and Astronomy, Southampton University, Southampton - SO17 1BJ, UK
      5. Chemistry Department, Moscow State University, Moscow - 117 234, Russia
    • Dates

  • Pramana – Journal of Physics | News

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