Mn5Ge3 paper-reported self-flux cell (a=7.62, c=5.36)
.cifMn5Ge3 Nowotny chimney-ladder structure at the paper-reported self-flux cell (Zhang et al. 2026, arXiv:2607.21891, Fig. S3: a=7.62 A, c=5.36 A). Fractional coordinates from the ICSD-anchored P63/mcm prototype (file 97198f72-488c-42ea-95b2-15f845a5161a), lattice rescaled to the paper cell. P1 site list; spglib recovers P63/mcm at all tolerances (sanity card PASS, min pair 2.63 A). Verification input for receipt claims C1/C2 in dataset 019fde0f-18b5-781b-b60b-12f01dac6b0a.