@article {9440,
	title = {Doping-dependent photon scattering resonance in the model high-temperature superconductor HgBa2CuO4+δ revealed by Raman scattering and optical ellipsometry},
	journal = {Physical Review Letters},
	year = {2013},
	doi = {10.1103/PhysRevLett.111.187001},
	author = {Yuan Li and M. Le Tacon and Y. Matiks and A.V. Boris and T. Loew and C.T. Lin and Lu Chen and M.K. Chan and C. Dorow and L. Ji and N. Bari{\v s}i{\'c} and X. Zhao and M. Greven and B. Keimer}
}
