Fig. 5: The schematic diagram of the giant 1D NTE.
From: Giant uniaxial negative thermal expansion in FeZr2 alloy over a wide temperature range
a, b Zr–M (M = Fe, Ni) bonds expansion: true bond expansion extracted by EXAFS (gray line+symbols) and apparent bond expansion measured by SXRD (orange line+symbols). The bars represent calculated error values. c, d 2D simplified geometry, and evolutions for the schematic diagram of giant 1D NTE FeZr2 (c) and PTE NiZr2 (d).
