Chemical design of electronic and magnetic energy scales of tetravalent praseodymium materials.

ABSTRACT: Lanthanides in the trivalent oxidation state are typically described using an ionic picture that leads to localized magnetic moments. The hierarchical energy scales associated with trivalent lanthanides produce desirable properties for e.g., molecular magnetism, quantum materials, and quantum transduction. Here, we show that this traditional ionic paradigm breaks down for praseodymium in the tetravalent oxidation state. Synthetic, spectroscopic, and theoretical tools deployed on several solid-state Pr⁴⁺-oxides uncover the unusual participation of 4f orbitals in bonding and the anomalous hybridization of the 4f¹ configuration with ligand valence electrons, analogous to transition metals. The competition between crystal-field and spin-orbit-coupling interactions fundame

SUBMITTER: Ramanathan A 

PROVIDER: S-EPMC10229542 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature