High-pressure electrides: From design to synthesis
Wan Biao1, 2, Zhang Jingwu1, Wu Lailei1, Gou Huiyang2, †
       

(a) Predicted structural transformations of Ca2N under pressure. (b) Rietveld refinements of XRD patterns of Ca2N in R-3m, Fd-3m, I-42d, and Cc lattices. (c) Measured electrical resistance as a function of temperature at different pressure.[55].