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https://research.chalmers.se/publication/2028 THz Josephson properties of grain boundary YBaCuO junctions on symmetric, tilted bicrystal sapphire... Superconducting Josephson junctions with high characteristic voltages (IcRn larger than 4 mV at 4.2 K) are fabricated by depositing YBa2Cu3O7-x on miscut... grain boundarythzjosephsonpropertiesybacuo