Te 5 p orbitals bring three-dimensional electronic structure to two-dimensional Ir 0.95 Pt 0.05 Te 2

D. Ootsuki, T. Toriyama, S. Pyon, K. Kudo, M. Nohara, K. Horiba, M. Kobayashi, K. Ono, H. Kumigashira, T. Noda, T. Sugimoto, A. Fujimori, N. L. Saini, T. Konishi, Y. Ohta, Takashi Mizokawa

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Abstract

We have studied the nature of the three-dimensional multiband electronic structure in the two-dimensional triangular lattice Ir1-xPtxTe2 (x=0.05) superconductor using angle-resolved photoemission spectroscopy (ARPES), x-ray photoemission spectroscopy (XPS), and a band structure calculation. ARPES results clearly show a cylindrical (almost two-dimensional) Fermi surface around the zone center. Near the zone boundary, the cylindrical Fermi surface is truncated into several pieces in a complicated manner with strong three dimensionality. The XPS result and the band structure calculation indicate that the strong Te 5p-Te 5p hybridization between the IrTe2 triangular lattice layers is responsible for the three dimensionality of the Fermi surfaces and the intervening of the Fermi surfaces observed by ARPES.

Original languageEnglish
Article number104506
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume89
Issue number10
DOIs
Publication statusPublished - 2014 Mar 6
Externally publishedYes

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ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Ootsuki, D., Toriyama, T., Pyon, S., Kudo, K., Nohara, M., Horiba, K., Kobayashi, M., Ono, K., Kumigashira, H., Noda, T., Sugimoto, T., Fujimori, A., Saini, N. L., Konishi, T., Ohta, Y., & Mizokawa, T. (2014). Te 5 p orbitals bring three-dimensional electronic structure to two-dimensional Ir 0.95 Pt 0.05 Te 2. Physical Review B - Condensed Matter and Materials Physics, 89(10), [104506]. https://doi.org/10.1103/PhysRevB.89.104506