论文标题
在单轴压力下通过弹性和弹性测量的单轴压力,在ERTE $ _3 $和TMTE $ _3 $中重新调整电荷密度波状态的证据
Evidence for realignment of the charge density wave state in ErTe$_3$ and TmTe$_3$ under uniaxial stress via elastocaloric and elastoresistivity measurements
论文作者
论文摘要
我们报告了在准2D稀土Tritellires($ r $ te $ _3 $ for $ r $ = er,tm)中的电荷密度波(CDW)状态的演变,这是平面单轴压力的函数。弹性效应,电阻率和弹性抗性的测量使我们能够证明面内反对称应变对CDW的重要性并建立相图。我们表明,与平面$ a $轴平行的适度拉伸应力可以可逆地切换两个平面方向之间的订购波形的方向。这项工作将$ r $ te $ _3 $作为一种有前途的模型系统,用于研究菌株CDW互动中的Quasi-2D Square Grattice。
We report the evolution of a charge density wave (CDW) state in the quasi-2D rare-earth tritellurides ($R$Te$_3$ for $R$=Er,Tm) as a function of in-plane uniaxial stress. Measurements of the elastocaloric effect, resistivity, and elastoresistivity allow us to demonstrate the importance of in-plane antisymmetric strain on the CDW and to establish a phase diagram. We show that modest tensile stress parallel to the in-plane $a$-axis can reversibly switch the direction of the ordering wavevector between the two in-plane directions. This work establishes $R$Te$_3$ as a promising model system for the study of strain-CDW interactions in a quasi-2D square lattice.