Fig. 7: Temperature-dependent Raman spectra of grunerite A86 measured in situ.

a Data collected in air in \({{\bar{y}}^{{\prime} }}({zz})y^{\prime}\) scattering geometry; b data collected in air in \({{\bar{y}}^{{\prime} }}(x^{\prime} x^{\prime} )y^{\prime}\) scattering geometry; c data collected in N2 in \({{\bar{y}}^{{\prime} }}({zz})y^{\prime}\) scattering geometry. Spectra are vertically offset for clarity.