论文标题
$ \ textrm {la} _ {1.475} \ textrm {nd} _ {0.4} \ textrm {sr} _ {0.125} \ textrm {cu} \ textrm {cu} \ textrm {cu} \ textrm {o} _ {4
Large response of charge stripes to uniaxial stress in $\textrm{La}_{1.475}\textrm{Nd}_{0.4}\textrm{Sr}_{0.125}\textrm{Cu}\textrm{O}_{4}$
论文作者
论文摘要
基于洛杉矶的“ 214”库层具有几个对称性断裂阶段，包括条纹形式的超导性，电荷和旋转顺序以及结构的牙本质到四方相变。因此，这些材料是研究单轴应力对遍布铜酸盐相图的各种相关性的影响的理想系统。我们在$ \ textrm {la} _ {1.475} \ textrm {nd} _ {0.4} \ textrm {sr} _ {0.125} \ textrm {cu} {cu} \ textrm {ln $ \ sim $ 0.1 GPA的单轴拉伸压力的电荷条纹。这些效果包括将条纹的开始温度降低$ \ sim $ 50 K，低温正交到四型转变的29 K降低，电荷顺序和超导性之间的竞争，以及偏爱条纹沿施加的应力方向形成。总的来说，我们观察到LNSCO-125对适度量的单轴应力的电子特性的显着响应。
The La-based '214' cuprates host several symmetry breaking phases including superconductivity, charge and spin order in the form of stripes, and a structural othorhombic-to-tetragonal phase transition. Therefore, these materials are an ideal system to study the effects of uniaxial stress onto the various correlations that pervade the cuprate phase diagram. We report resonant x-ray scattering experiments on $\textrm{La}_{1.475}\textrm{Nd}_{0.4}\textrm{Sr}_{0.125}\textrm{Cu}\textrm{O}_{4}$ (LNSCO-125) that reveal a significant response of charge stripes to uniaxial tensile-stress of $\sim$ 0.1 GPa. These effects include a reduction of the onset temperature of stripes by $\sim$ 50 K, a 29 K reduction of the low-temperature orthorhombic-to-tetragonal transition, competition between charge order and superconductivity, and a preference for stripes to form along the direction of applied stress. Altogether, we observe a dramatic response of the electronic properties of LNSCO-125 to a modest amount of uniaxial stress.
