tau-MnAl L1_0 relaxed-geometry 2x1x1 supercell along c (4 atoms), built from DFT-relaxed MnAl CIF bda05d95 (action 01a09b17) for the H14 AFM-seeded competing-order check. Seeds [0.5, 3.0, 0.5, -3.0] in file site order. sha256 6cc3338661d75109e033d585854ef07da0599b360fadebccbd7862dfaa8261cd