The normal-state resistivity of grain boundaries in YBa2Cu3O7−δ

J. H. T. Ransley, S. H. Mennema, K. G. Sandeman, G. Burnell, E. J. Tarte, J. E. Evetts, M. G. Blamire, J. I. Kye, B. Oh
2004 Applied Physics Letters  
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.
doi:10.1063/1.1753055 fatcat:pooxfmec65ha3boxvlohclaaza