“Collective modes and quasiparticle interference on the local density of states of cuprate superconductors”, C.-T. Chen and N.-C. Yeh. Physical Review B 68, 220505(R) (2003).
http://journals.aps.org/prb/abstract/10.1103/PhysRevB.68.220505
“Collective modes and quasiparticle interference on the local density of states of cuprate superconductors”, C.-T. Chen and N.-C. Yeh. Physical Review B 68, 220505(R) (2003).
http://journals.aps.org/prb/abstract/10.1103/PhysRevB.68.220505