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Superconducting and normal-state properties of YBa2Cu3O7−δ -bicrystal grain boundary junctions in thin films

1998; American Institute of Physics; Volume: 73; Issue: 2 Linguagem: Inglês

10.1063/1.121775

1520-8842

H. Hilgenkamp, J. Mannhart,

High-pressure geophysics and materials

A model, based on universal properties of high-Tc superconductors only, is presented for the transport characteristics of grain boundaries in these materials. The model accounts for the superconducting as well as for the normal-state transport properties observed in a comprehensive study of YBa2Cu3O7−δ [001]-tilt bicrystalline grain boundaries with varying misorientation angles and of two different symmetries.