Effect of Next-Nearest-Neighbour Hopping on Direct-Current Conductivity Based on an Extended Planar t - J Model

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2004,（10）
• 页码范围: 2037-2040
• 页数: 4页
• 语种: 英文

摘要

By using the self-consistent Born approximation based on a planar extended t-J model, we investigate the relation between dc conductivity and next-nearest-neighbour hopping integral t'. The t'-dependence of dc conductivity shows a peaked structure.