Pressure-Induced Metallization of BaH2 and the Effect of Hydrogenation
Hannah A. Shuttleworth,
Israel Osmond,
Calum Strain
et al.
Abstract:Using optical spectroscopy,
X-ray diffraction, and electrical transport
measurements, we have studied the pressure-induced metallization in
BaH
2
and Ba
8
H
46
. Our combined measurements
suggest a structural phase transition from BaH
2
-II to BaH
2
-III accompanied by band gap closure and transformation to
a metallic state at 57 GPa. The metallization is confirmed
by resistance measurements as a … Show more
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