Abstract
In this article we present a new method for the preparation of nonrandom Au-YBa2Cu3O7−x (YBCO) composites. We describe the structural and the morphological properties of this novel system. Gold introduction into this system causes an increase in the c axis value of the unit cell upon sintering at 950 °C. A systematic increase of the zero resistance transition temperature, up to 96 K as measured by a dc transport method, is observed upon the introduction of gold into the YBCO lattice. Introduction of gold above ≊3% by weight causes weakening of the intergranular links of the composite material.
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