Signatures of nematic quantum critical fluctuations in the Raman spectra of lightly doped cuprates

S. Caprara, M. Colonna, C. Di Castro +4

We consider the lightly doped cuprates Y${}_{0.97}$Ca${}_{0.03}$BaCuO${}_{6.05}$ and La${}_{2-x}$Sr${}_x$CuO${}_4$ (with $x=0.02$,0.04), where the presence of a fluctuating nematic state has o…