Absence of precursor incommensurate charge order in electronic nematic Ba0.35Sr0.65Ni2As2
Absence of precursor incommensurate charge order in electronic nematic Ba0.35Sr0.65Ni2As2
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电子向列相 Ba0.35Sr0.65Ni2As2 中不存在前体不相称的电荷顺序
DOI：
10.1103/physrevb.106.054107
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发表时间：
2022
影响因子：
3.7
通讯作者：
Paglione, Johnpierre
中科院分区：
文献类型：
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作者：
Collini, John;Lee, Sangjun;Sun, Stella X.-L.;Eckberg, Chris;Campbell, Daniel J.;Abbamonte, Peter;Paglione, Johnpierre
铁基超导体和铜氧化物中电荷有序和电子涨落有序的发现，指出了电子涨落和电荷涨落在超导电性增强中的作用。Theside在结构上与Theside密切相关，最近已被证明在不存在任何磁序的情况下表现出两种类型的有序。我们报道了单晶X射线衍射实验，提供了证据，以前报道的不相称的电荷顺序与波矢在四重态的消失，由65%的Sr取代连同重级。我们的测量结果表明，在四斜态中，π电荷序和无公度电荷序是紧密联系在一起的，并且表明在三斜相的电荷序在消失之前在转变为π电荷序。
Recent discoveries of charge order and electronic nematic order in the iron-based superconductors and cuprates have pointed towards the possibility of nematic and charge fluctuations playing a role in the enhancement of superconductivity. Thesystem, closely related in structure to thesystem, has recently been shown to exhibit both types of ordering without the presence of any magnetic order. We report single-crystal x-ray diffraction experiments on, providing evidence that the previously reported incommensurate charge order with wave-vectorin the tetragonal state ofvanishes by 65% Sr substitution together with nematic order. Our measurements suggest that the nematic and incommensurate charge orders are closely tied in the tetragonal state and show that thecharge ordering in the triclinic phase ofevolves to becomecharge ordering atbefore vanishing at.
DOI：
--
发表时间：
2006
期刊：
--
影响因子：
--
作者：
Iroon Polytechniou-
通讯作者：
Iroon Polytechniou-