Out-of-phase Plasmon Excitations in the Trilayer Cuprate Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$

S. Nakata, M. Bejas, J. Okamoto +14

Within a homologous series of cuprate superconductors, variations in the stacking of CuO${}_2$ layers influence the collective charge dynamics through the long-range Coulomb interact…