Unconventional superconductivity in the cuprates involves a complex interplay of competing charge and spin orders, making it challenging to elucidate the underlying mechanisms. Here, the authors apply uniaxial pressure to tune LBCO, and using muon spin rotation and AC susceptibility, reveal a gradual suppression of Tc under c-axis stress–contrasting with its strong enhancement under in plane stress–and show that c axis compression leaves spin stripe order intact while in plane stress strongly suppresses it.
- Shams Sohel Islam
- Vahid Sazgari
- Zurab Guguchia