论文标题
在最佳掺杂的BI2SR2CUO6+δ超导体中的伪gap状态中的粒子孔对称性保存
Conservation of the particle-hole symmetry in the pseudogap state in optimally-doped Bi2Sr2CuO6+δ superconductor
论文作者
论文摘要
伪帕帕状态是高温库酸酯超导体异常正常状态特性中最神秘的特征之一。一个核心问题是揭示是否存在对称性破坏，哪些对称性在整个伪群过渡过程中被损坏。通过在最佳掺杂的BI2SR1.6LA0.4CUO6+δ超导体上进行高分辨率激光分辨的光发射测量，我们报告了超导状态和PSEUDOGAP状态沿整个Fermi表面的粒子孔对称性保护的观察结果。这些结果为理解伪PSEUDOGAP的性质及其与高温超导性的关系提供了关键见解。
The pseudogap state is one of the most enigmatic characteristics in the anomalous normal state properties of the high temperature cuprate superconductors. A central issue is to reveal whether there is a symmetry breaking and which symmetries are broken across the pseudogap transition. By performing high resolution laser-based angle-resolved photoemission measurements on the optimally-doped Bi2Sr1.6La0.4CuO6+δ superconductor, we report the observations of the particle-hole symmetry conservation in both the superconducting state and the pseudogap state along the entire Fermi surface. These results provide key insights in understanding the nature of the pseudogap and its relation with high temperature superconductivity.
