论文标题
铁 - 阿森尼超导体头囊的电子掺杂，由静水压力控制
Electron doping of the iron-arsenide superconductor CeFeAsO controlled by hydrostatic pressure
论文作者
论文摘要
在铁刺皮材料中不仅是fe矩，而且在低温下，在CE命令的局部4F次数抗铁磁。我们阐明了CE在超导性出现中的特殊作用。虽然压力的施加可抑制铁SDW排序单调的温度最高为4 GPA，但CE-4F磁力稳定下，直到两种类型的磁阶突然消失并且狭窄的SC圆顶出现。随着近晶石系统的进一步增加的压力特性在电阻率中变得越来越明显。这表明，超导性的出现与磁序的灭绝以及CE-4F矩的近核筛查的灭绝有关。
In the iron-pnictide material CeFeAsO not only the Fe moments, but also the local 4f moments of the Ce order antiferromagnetically at low temperatures. We elucidate on the peculiar role of the Ce on the emergence of superconductivity. While application of pressure suppresses the iron SDW ordering temperature monotonously up to 4 GPa, the Ce-4f magnetism is stabilized, until both types of magnetic orders disappear abruptly and a narrow SC dome develops. With further increasing pressure characteristics of a Kondo-lattice system become more and more apparent in the electrical resistivity. This suggests a connection of the emergence of superconductivity with the extinction of the magnetic order and the onset of Kondo-screening of the Ce-4f moments.
