论文标题

在强大的基于铁的超导体超过$ _2 $中,$ _2 $(a = k,cs,rb)在强大的铁基超导体中增强了临界温度

Enhanced critical temperatures in the strongly overdoped iron-based superconductors AFe$_2$As$_2$ (A = K, Cs, Rb) observed by point contacts

论文作者

Naidyuk, Yu. G., Kvitnitskaya, O. E., Efremov, D. V., Drechsler, S. -L.

论文摘要

已经观察到在单晶基底部创建的点接触中,已经观察到了超导临界温度TC的几次显着增加(最多10 K),Afe $ _2 $ AS $ _2 $(a = k,cs,rb)。在定性级别上简要讨论了这种TC增加点接触的可能原因。其中,最有可能归因于界面载体掺杂和/或单轴非均匀压力,当时会产生接触时产生。

A remarkable several times increase (up to 10 K) of the superconducting critical temperature Tc has been observed in point contacts created on the base of single crystals AFe$_2$As$_2$ (A = K, Cs, Rb). Possible reasons for such a Tc increase in point contacts are briefly discussed on a qualitative level. Among them, it is most likely attributed to interfacial carrier doping and/or uniaxial non-homogeneous pressure arising when the contact is created.

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