Dimerization-induced fermi-surface reconstruction in IrTe2

Man Jin Eom, Kyoo Kim, Y. J. Jo, J. J. Yang, E. S. Choi, B. I. Min, J. H. Park, S. W. Cheong, Jun Sung Kim

Research output: Contribution to journalReview articlepeer-review

26 Scopus citations

Abstract

We report a de Haas-van Alphen (dHvA) oscillation study on IrTe2 single crystals showing complex dimer formations. By comparing the angle dependence of dHvA oscillations with band structure calculations, we show distinct Fermi surface reconstruction induced by a 1=5-type and a 1=8-type dimerizations. This verifies that an intriguing quasi-two-dimensional conducting plane across the layers is induced by dimerization in both cases. A phase transition to the 1=8 phase with higher dimer density reveals that local instabilities associated with intra- and interdimer couplings are the main driving force for complex dimer formations in IrTe2.

Original languageEnglish (US)
Article number266406
JournalPhysical Review Letters
Volume113
Issue number26
DOIs
StatePublished - Dec 30 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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