arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1609.09635cond-mat.supr-concond-mat.str-el
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Cr $_3$ As $_3$链状超导体的特殊性质

Peculiar properties of Cr$_3$As$_3$-chain-based superconductors

Guang-Han Cao, Jin-Ke Bao, Zheng-Tu Tang, Yi Liu, Hao Jiang

摘要:

$A_2$ Cr $_3$ As $_3$($A$ = K、Rb、Cs)是迄今为止在2015年偶然发现的独特的铬基常压超导体。新的超导家族的结构特征是准一维[(Cr $_3$ As $_3$)$^{2-}$ ] $_{\infty}$双壁亚纳米管,其表现出的特殊性质,主要指向非常规的超导性。在这篇会议论文中,我们首先描述了超导体是如何被发现的。然后综述了$A_2$ Cr $_3$ As $_3$的晶体结构、电子结构、理论模型和各种物理性质的研究进展。并给出了一些新的实验结果。最后,我们结束了在这个新兴的超导子领域解决相关的开放性问题。

英文摘要:

$A_2$Cr$_3$As$_3$ ($A$ = K, Rb, Cs) are the unique Cr-based ambient-pressure superconductors to date discovered by serendipity in 2015. The new superconducting family are structurally characterized by quasi one-dimensional [(Cr$_3$As$_3$)$^{2-}$]$_{\infty}$ double-walled subnanotubes, which exhibit peculiar properties that mostly point to unconventional superconductivity. In this conference paper, we first describe how the superconductors were discovered. Then we overview the recent progresses on crystal structure, electronic structures, theoretical models, and various physical properties in $A_2$Cr$_3$As$_3$. Some new experimental results are included. Finally we conclude by addressing the related open questions in this emerging subfield of superconductivity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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