Investigating the melting curves of transition metals like iridium is vital for understanding planetary cores and advancing high-pressure technology, yet their high-pressure phase diagrams remain poorly understood. Here, the authors use advanced diamond anvil cell techniques and synchrotron X-ray diffraction to map iridium’s phase diagram, confirming its face-centered cubic structure up to 101 GPa and 5600 K, and providing critical data for technological applications.
- Simone Anzellini
- Pablo Botella
- Daniel Errandonea
