报告时间:12月9日 中午12:15
报告地点:唐楼 B501
报告人:周苑 老师
报告题目:Revised phase diagram and anomalous temperature evolution in hole-doped cuprates
摘要:The superconductivity plays dramatic roles in the intermediate doping range in cuprates. It competes with the pseudogap intensively, resulting in the recent discovered phase diagram in Bi2212. The quantum critical point of pseudogap is therefore much suppressed, in sharp contrast with the long believed data. The anomalous temperature dependence of measured gap and Raman response in the intermediate doping region are subsequently revealed with the d-wave like form of pseudogap. We point out the abnormality follows a two-step evolution, dominated by the superconductivity and pseudogap at the low and high temperature region, respectively. These findings are well supported by the measurements on various types of cuprates. We further show that the d-wave-like form of pseudogap is a more like candidate.