Orbitally induced Peierls state in spinels

D. I. Khomskii*, T. Mizokawa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

258 Citations (Scopus)


We consider the superstructures, which can be formed in spinels containing on B sites the transition-metal ions with partially filled t2g levels. We show that, when such systems are close to the itinerant state (e.g., have an insulator-metal transition), there may appear in them an orbitally driven Peierls state. We explain by this mechanism the very unusual superstructures observed in CuIr2S4 (octamers) and MgTi2O4 (chiral superstructures) and suggest that a similar phenomenon should be observed in NaTiO2 and possibly in some other systems.

Original languageEnglish
Article number156402
JournalPhysical Review Letters
Issue number15
Publication statusPublished - 2005 Apr 22
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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