A high-<i>T</i>_C heavy rare earth monoxide semiconductor TbO with a more than half-filled 4f orbital

Abstract

A rock-salt structured terbium monoxide, TbO, was synthesized for the first time in the solid phase. This TbO is a high T C (231 K) ferromagnetic semiconductor, probably forming 4f and 5f magnetic sublattices at a single magnetic Tb 2+ site.