Effect of valence fluctuation in heavy fermion superconductors under pressure

点击翻译按钮获取中文摘要

In this investigation, we found new information of the relationship between superconductivity and antiferromagnetism in vicinity of quantum critical point by means of the physical properties measurements under pressure of a single-crystalline CeIrIn5, in which it has been pointed out that valence fluctuation takes place near the quantum criticality point by theory,Next, we focus on a pressure-induced antiferromagnet YbCo2Zn20 with the smallest quantum critical pressure in Yb-based heavy fermion compounds. We succeeded in the single-crystalline doped YbCo2Zn20 and found new information of its pressure effect.