Figure 6
(a) TDS spectra and (b) V/Z versus T plots showing the region where the supercell exists. NdGaH1.1 is a two-phase sample with 1a and 3a unit cells, while NdGaH1.6 is 3a phase sample. T = 523 K is the last temperature which results in a 3a structure, while desorption at 573 K results in a 1a structure. |