准一维KCr $_3$ As $_3$的阻挫磁性到超导性的掺氢调谐
Tuning from Frustrated Magnetism to Superconductivity in Quasi-One-Dimensional KCr$_3$As$_3$ Through Hydrogen Doping
摘要：
我们报道了通过H嵌入对KCr $_3$ As $_3$进行电荷掺杂。我们表明，先前报道的$_2$ Cr $_3$ As $_3$到KCr $_3$ As $_3$的乙醇浴脱嵌具有二次效应，由此来自浴的H进入准一维Cr $_6$ As $_6$链。此外，我们发现，与以前的解释相反，非超导生长KCr $_3$ As $_3$样品和超导水热退火样品之间的差异不是结晶度的变化，而是由于电荷掺杂，后一种处理增加了CrAs管中的H浓度，有效地电子掺杂了133化合物。这些结果表明，一个新的化学计量KH $_x$ Cr $_3$作为$_3$，超导性产生于通过一个可调参数的抑制磁秩序，并铺平了道路，在这些材料中的第一个电荷掺杂的相图。
英文摘要：
We report the charge doping of KCr$_3$As$_3$ via H intercalation. We show that the previously reported ethanol bath deintercalation of K$_2$Cr$_3$As$_3$ to KCr$_3$As$_3$ has a secondary effect whereby H from the bath enters the quasi-one-dimensional Cr$_6$As$_6$ chains. Furthermore, we find that - contrary to previous interpretations - the difference between non-superconducting as-grown KCr$_3$As$_3$ samples and superconducting hydrothermally annealed samples is not a change in crystallinity but due to charge doping, with the latter treatment increasing the H concentration in the CrAs tubes effectively electron-doping the 133 compound. These results suggest a new stoichiometry KH$_x$Cr$_3$As$_3$, that superconductivity arises from a suppressed magnetic order via a tunable parameter and pave the way for the first charge-doped phase diagram in these materials.
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。
