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The Normal State Resistivity of Grain Boundaries in YBa2Cu3O7-delta

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 نشر من قبل Karl G. Sandeman
 تاريخ النشر 2003
  مجال البحث فيزياء
والبحث باللغة English
 تأليف J.H.T. Ransley




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Using an optimized bridge geometry we have been able to make accurate measurements of the properties of YBa2Cu3O7-delta grain boundaries above Tc. The results show a strong dependence of the change of resistance with temperature on grain boundary angle. Analysis of our results in the context of band-bending allows us to estimate the height of the potential barrier present at the grain boundary interface.



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