Au-doping effects in the Mg1-xAuxB2 series

作者：Xu XL^*; Guo JD; Wang YZ; Wang X

来源：Materials Letters, 2004, 58(1-2): 142-145.

DOI：10.1016/S0167-577X(03)00432-4

• MgB2
• Au-doping
• superconductivity

A series of Au-doped MgB2 superconductors with different doping levels were prepared by means of solid-state reaction. X-ray diffraction analysis indicates that Mg1-xAuxB2 samples with x less than or equal to 0.236 can still be identified as having a hexagonal structure, with a different space group from the pure MgB2. The resistive measurements show that the addition of Au to MgB2 results in a Tc decrease. The dependence of the crystal structure and the superconducting transition temperature on the doping concentration is discussed.

• 出版日期2004-1
• 单位北京大学