“…22,29,30 To clarify the correlation, the average bond length in a X-Te polyhedron was calculated, and the phasechange properties in X doped GST, including phase-change and the 10 year-lifetime temperatures, were summarized from previous reports. [31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49] Because the phase-change properties changed with doping content, the best phase-change and 10 year-lifetime temperatures were used. Fig.…”