Fig. 4: Hydrogen sensitivity of NR and RNR in different systems. | Nature Communications

Fig. 4: Hydrogen sensitivity of NR and RNR in different systems.

From: Resonant neutron reflectometry for hydrogen detection

Fig. 4

a Simulated NR curves for the Pt-capped Nb film on sapphire before (black) and after (red) loading with 5 % hydrogen, with SLDs of 3.91 (3.81) × 10−6Å−2 for pure (5% H-loaded) Nb, respectively. b Simulated SF reflectivity at resonance for the same system (with an additional thin Co layer) before (black) and after (blue) H-loading. c Simulated NR reflectivity curves for the same film on a silicon substrate. d Simulated RNR curves of a Nb film on silicon, with an additional Pt layer at the substrate interface that generates a waveguide structure, before (black) and after (blue) loading with 5% H. The minimum measurement times (tmin) to detect 5% H are shown as dashed red (blue) lines in conventional NR (RNR).

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