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The La-based '214' cuprates host several symmetry breaking phases includingsuperconductivity, charge and spin order in the form of stripes, and astructural othorhombic-to-tetragonal phase transition. Therefore, thesematerials are an ideal system to study the effects of uniaxial stress onto thevarious correlations that pervade the cuprate phase diagram. We report resonantx-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 uniaxialtensile-stress of $\sim$ 0.1 GPa. These effects include a reduction of theonset temperature of stripes by $\sim$ 50 K, a 29 K reduction of thelow-temperature orthorhombic-to-tetragonal transition, competition betweencharge order and superconductivity, and a preference for stripes to form alongthe direction of applied stress. Altogether, we observe a dramatic response ofthe electronic properties of LNSCO-125 to a modest amount of uniaxial stress.

Large response of charge stripes to uniaxial stress in $\textrm{La}_{1.475}\textrm{Nd}_{0.4}\textrm{Sr}_{0.125}\textrm{Cu}\textrm{O}_{4}$