论文标题
部分可观测时空混沌系统的无模型预测
Pressure-induced superconductivity in charge-density-wave compound LaTe2-xSbx (x=0 and 0.4)
论文作者
论文摘要
在这里，我们将后期2-XSBX（X = 0和0.4）的单晶与可连续调节的CDW生长。高压X射线衍射显示后期2不会进行相变，并保持40 gpa以下。原位高压电测量结果显示，分别在4.6和2.5 GPA时进行半导体 - 金属抗性转变。随着SB的掺杂，最高的TC从4.6增加到6.5K。理论计算表明，CDW已完全抑制，计算出的TC在4.5 GPA时约为2.97 K，与测量值一致。然后，可以在BCS理论的框架中解释2-XSBX的压力诱导的超导性。
Here, we have grown single crystals of LaTe2-xSbx (x=0 and 0.4) with continuously adjustable CDW. High-pressure x-ray diffraction show LaTe2 does not undergo phase transition and keep robust below 40 GPa. In-situ high-pressure electrical measurements show LaTe2-xSbx undergo semiconductor-metal-superconductivity transition at 4.6 and 2.5 GPa, respectively. With the doping of Sb, the highest Tc increases from 4.6 to 6.5 K. Theoretical calculations reveal that the CDW has been completely suppressed and the calculated Tc is about 2.97 K at 4.5 GPa, consistent with the measured value. Then, the pressure-induced superconductivity in LaTe2-xSbx can be explained in the framework of the BCS theory.
