Ab initio calculations of the mechanical and acoustic properties of Ti2-based Heusler alloys under pressuresYufeng Wen, Xiaoguang Yu, Xianshi Zeng, Yuanxiu Ye, Donglan Wu and Qingdong GouEur. Phys. J. B, 91 7 (2018) 140DOI: https://doi.org/10.1140/epjb/e2018-90261-y