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- Oh, Yoon Seok
- Laboratory for Strong Correlation in Quantum Materials
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Anionic Depolymerization Transition in IrTe2
- Author(s)
- Oh, Yoon Seok, Yang, J. J., Horibe, Y., Cheong, S. -W.
- Issued Date
- 2013-03
- Citation
- PHYSICAL REVIEW LETTERS, v.110, no.12
- Abstract
- Selenium substitution drastically increases the transition temperature of iridium ditelluride (IrTe2) to a diamagnetic superstructure from 278 to 560 K. Transmission electron microscopy experiments revealed that this enhancement is accompanied by the evolution of nonsinusoidal structure modulations from q=1/5(101̄) to q=1/6(101̄) types. These comprehensive results are consistent with the concept of the destabilization of polymeric Te-Te bonds at the transition, the temperature of which is increased by chemical and hydrostatic pressure and by the substitution of Te with the more electronegative Se. This temperature-induced depolymerization transition in IrTe2 is unique in crystalline inorganic solids.
- Publisher
- AMER PHYSICAL SOC
- ISSN
- 0031-9007
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