Tb2 Au2

Tb₂Au₂ is an intermetallic compound combining terbium (a rare-earth element) with gold, forming a binary phase that exhibits semiconductor behavior. This material is primarily of research and exploratory interest rather than established in high-volume industrial applications; it belongs to the rare-earth–precious-metal intermetallic family that shows promise for specialized electronic and photonic devices where the combination of rare-earth magnetism or optical properties with gold's chemical stability and conductivity could be leveraged.