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Oh, Yoon Seok
Laboratory for Strong Correlation in Quantum Materials
Research Interests
  • Materials for Quantum Information Processing, Transport, and Storage
  • Quantum Magnet
  • Multiferroic

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Anionic Depolymerization Transition in IrTe2

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Title
Anionic Depolymerization Transition in IrTe2
Author
Oh, Yoon SeokYang, J. J.Horibe, Y.Cheong, S. -W.
Keywords
Ditelluride; Inorganic solids; Non-sinusoidal; Structure modulation; Temperature-induced
Issue Date
2013-03
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW LETTERS, v.110, no.12, pp. -
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.
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DOI
10.1103/PhysRevLett.110.127209
ISSN
0031-9007
Appears in Collections:
PHY_Journal Papers
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