Influence of incommensurate structure on the elastic constants of crystalline Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ by Brillouin light scattering spectroscopy

B. D. E. McNiven, J. P. F. LeBlanc, G. T. Andrews

Brillouin light scattering spectroscopy was used to probe the room-temperature elasticity of crystalline high-$T_c$ superconductor Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$. A complete set of…