Synthesis, Structure, and Electric Conductivity of Higher Hydrides of Ytterbium at High Pressure.

ABSTRACT: While most of the rare-earth metals readily form trihydrides, due to increased stability of the filled 4f electronic shell for Yb(II), only YbH_2.67, formally corresponding to Yb^II(Yb^IIIH₄)₂ (or Yb₃H₈), remains the highest hydride of ytterbium. Utilizing the diamond anvil cell methodology and synchrotron powder X-ray diffraction, we have attempted to push this limit further via hydrogenation of metallic Yb and Yb₃H₈. Compression of the latter has also been investigated in a neutral pressure-transmitting medium (PTM). While the in situ heating of Yb facilitates the formation of YbH_2+x hydrides, we have not observed clear qualitative differences between the system

SUBMITTER: Jaron T 

PROVIDER: S-EPMC9490838 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature