Stability, elastic anisotropy, and electronic properties of Ca2C3
Zhang Quan1, Wei Qun2, †, Yan Hai-Yan3, Zhu Xuan-Min2, Zhang Jun-Qin1, Jia Xiao-Fei4, Yao Rong-Hui2
       

Phonon spectra for C2/m-Ca2C3 at 0 GPa (a) and 24 GPa (b).