Fig. 5. Temperature dependent E_g magnetic Raman continua in EuCu₃.

a The E_g Raman susceptibility ${\chi }_{E_{\mathrm{g}}}^{{}^{″}}={\chi }_{\mathrm{XY}}^{{}^{″}}$. The solid lines are guides to the eye. A sharp magnon peak appears in the E_g magnetic Raman continuum below the magnetic transition temperature T_N = 17 K. b Temperature dependence of the static Raman susceptibility in the E_g channel ${\chi }_{E_{\mathrm{g}}}^{\prime }\left(T\right)=\frac{2}{\pi }{\int }_{10{\mathrm{cm}}^{-1}}^{780{\mathrm{cm}}^{-1}}\frac{{\chi }_{E_{\mathrm{g}}}^{{}^{″}}\left(\omega ,T\right)}{\omega }d\omega$. The solid line is a guide to the eye. c Color map of ${\chi }_{E_{\mathrm{g}}}^{{}^{″}}\left(\omega ,T\right)$.