Nonlinear doping of cuprate superconductors - The case of Bi2Sr2-xLaxCuO6+delta

作者：Roehler J^*

来源：Physica C-Superconductivity and Its Applications, 2010, 470: S39-S41.

DOI：10.1016/j.physc.2009.11.027

• Superconductivity
• Cuprates
• Doping
• Substitution effects
• Electronic structure
• Phase separation
• Bismuth
• Oxygen

We analyze the hole doping mechanism in Bi2Sr2-xLaxCuO6+delta (BSLCO). The singular optimum around x = 0.35 is found to be connected with a feedback between the doped CuO2 layers and its dopant reactant [La3+/Bi3+-O-delta] locking the number of doped holes preferentially on to the universal optimum n(opt) similar or equal to 0.16.

• 出版日期2010-12