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Zero-bias conductance peak split in d-wave superconductors: Derivation of the universal magnetic field dependence

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 نشر من قبل Christian Iniotakis
 تاريخ النشر 2009
  مجال البحث فيزياء
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The zero-bias conductance peak in d-wave superconductors splits in an applied magnetic field. In this work, the experimentally observed universal relation delta ~ B0^(1/2) for strip-shaped samples is derived analytically based on the long-ranged current contributions from Abrikosov vortices inside the sample. The result is in full agreement with observed key properties, and features such as hysteresis effects are made accessible. Employing a magnetically induced additional order parameter is not necessary for the physical explanation of the universal relation.



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