Hydrogen transforms metal alloy electronics in ways engineers can now predict
Researchers have mapped how hydrogen alters the electronic properties of vanadium-zirconium metallic glass, a material used in electronics and industrial applications. By combining lab measurements with computational modeling, they've created a predictive framework that could help engineers design better alloys for energy storage, aerospace, and semiconductor applications.
Originaltitel: Influence of hydrogen on the electronic structure in the transition metallic glass V<sub>80</sub>Zr<sub>20</sub>
<p>We investigate the influence of hydrogen on the electronic structure of a binary transition metallic glass of V<sub>80</sub>Zr<sub>20</sub>. We examine the hybridization between the hydrogen and metal atoms with the aid of hard x-ray photoelectron spectroscopy. Combined with <em>ab initio</em> density functional theory, we are able to show and predict the formation of 𝑠−𝑑 hybridized energy states. With optical transmission and resistivity measurements, we investigate the emergent electronic properties formed out of those altered energy states, and together with the theoretical calculations of the frequency-dependent conductivity tensor, we qualitatively support the observed strong wavelength-dependency of the hydrogen-induced changes on the optical absorption and a positive parabolic change in resistivity with hydrogen concentration.</p>