Post-spinel transition-metal oxides have emerged as potential candidates for high ionic conductors and materials with strongly correlated electrons. In this Review, the authors discuss recent developments in large-volume high-pressure technology, crystal structural features of post-spinel phases and their geochemical significance, and weigh the challenges and opportunities post-spinel phases entail for material applications.
- Masaki Akaogi
- Takayuki Ishii
- Kazunari Yamaura