【摘要】 本文系统介绍了YBa2Cu3O7-y高温超导体中不同位置、不同元素替代对其超导电性的影响。我们认为元素替代引起的局域电子结构的变化导致体系的晶体结构、氧含量以及载流子浓度的变化是影响到超导电性改变的本质因素。更多还原

【Abstract】 In this paper,the diverse elemental substitution at different site in YBa₂Cu₃O₇-y has been systematically introduced.It could be concluded that the local electronic structure ha been changed by elemental substitution,which altered the crystal structure,oxygen content and carrier density.It is the essential reason for elemental substitution influence superconductivity in this system.更多还原