Resonant two-phonon Raman scattering as a probe of hole crystal formation in Sr14-xCaxCu24O41
Joakim Holmlund, Jakob Andreasson, Christopher S. Knee, Joakim Bäckström, Mikael Käll, Minoru Osada, Takashi Noji, Yoji Koike, Masato Kakihana, Lars Börjesson.