Raman scattering studies on the collapsed phase of CaCo<sub>2</sub>As<sub>2</sub>

Raman scattering studies on the collapsed phase of CaCo₂As₂

Ji Jianting¹, Zhang Anmin¹, Yang Run², Tian Yong¹, Jin Feng¹, Qiu Xianggang², Zhang Qingming^{1, †,}

Temperature dependence of P₄ phonon’s frequencies and widths. The red line is the fitting curve using inharmonic phonon decay model.