Tm6 O9

Tm₆O₉ is a rare-earth oxide ceramic compound containing thulium, belonging to the family of sesquioxide and mixed-valence rare-earth oxides. This material is primarily of research and specialized applications interest, where its thermal, optical, and refractory properties are leveraged in high-temperature and photonic systems. Thulium oxides are explored for applications requiring high melting points, chemical stability, and in some cases luminescent or laser-active properties that exploit the electronic transitions of the thulium ion.