Large response of charge stripes to uniaxial stress in La1.475Nd0.4Sr0.125CuO4
Large response of charge stripes to uniaxial stress in La1.475Nd0.4Sr0.125CuO4
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DOI：
10.1103/physrevresearch.3.l022004
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发表时间：
2021-04-09
影响因子：
4.2
通讯作者：
Blanco-Canosa, S.
中科院分区：
文献类型：
--
作者：
Boyle, T. J.;Walker, M.;Blanco-Canosa, S.
La基“214”铜酸盐具有多个对称破缺相，包括超导性、条纹形式的电荷和自旋顺序，以及结构正交到四方相变。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。我们报告了 La1.475Nd0.4Sr0.125CuO4 (LNSCO-125) 的共振 X 射线散射实验，揭示了电荷条纹对类似于 0.1GPa 的单轴拉伸应力的显着响应。这些效应包括条纹起始温度降低约 50K、低温斜方晶系到四方晶系转变温度降低 29K、电荷顺序和超导性之间的竞争以及条纹沿施加应力的方向形成的倾向。总而言之，我们观察到 LNSCO-125 的电子特性对适度的单轴应力有显着的响应。
The La-based "214" cuprates host several symmetry-breaking phases, including superconductivity, charge and spin order in the form of stripes, and a structural orthorhombic-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 La1.475Nd0.4Sr0.125CuO4 (LNSCO-125) that reveal a significant response of charge stripes to uniaxial tensile stress of similar to 0.1GPa. These effects include a reduction of the onset temperature of stripes by similar to 50K, 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.