Large response of charge stripes to uniaxial stress in La1.475Nd0.4Sr0.125CuO4

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.

Automated summary

The La-based 214 cuprates exhibit significant responses to uniaxial stress, such as lowering the onset temperature of charge stripes, competition between charge order and superconductivity, and a preference for stripes to align along the direction of applied stress.