Direct evidence for hidden one-dimensional Fermi surface of hexagonal K0.25 WO3

S. Raj, T. Sato, S. Souma, T. Takahashi, D. D. Sarma, Priya Mahadevan, J. C. Campuzano, M. Greenblatt, W. H. McCarroll

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12 Citations (Scopus)

Abstract

The electronic structure of hexagonal potassium tungsten bronze K0.25 WO3 has been investigated by high-resolution angle-resolved photoemission spectroscopy (ARPES). The experimentally determined band structure resolves the long-standing puzzles concerning the anomalous transport properties in this hexagonal bronze. We find that the ARPES-derived Fermi surface is the consequence of hidden one-dimensional (1D) bands, in good agreement with the calculated Fermi surface. These results indicate that the high-temperature anomaly in the electrical resistivity originates in the possible charge-density-wave formation associated with the hidden 1D Fermi surfaces.

Original languageEnglish
Article number245120
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume77
Issue number24
DOIs
Publication statusPublished - 2008 Jun 18

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Raj, S., Sato, T., Souma, S., Takahashi, T., Sarma, D. D., Mahadevan, P., Campuzano, J. C., Greenblatt, M., & McCarroll, W. H. (2008). Direct evidence for hidden one-dimensional Fermi surface of hexagonal K0.25 WO3. Physical Review B - Condensed Matter and Materials Physics, 77(24), [245120]. https://doi.org/10.1103/PhysRevB.77.245120