Angle resolved photoemission study of the spin-Peierls system α′-NaV2O5

K. Kobayashi, T. Mizokawa, A. Fujimori, M. Isobe, Y. Ueda

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Abstract

We have made an X-ray photoemission and angle-resolved photoemission (ARPES) study of NaV2O5 at room temperature, i.e. in the paramagnetic phase well above its spin-Peierls transition temperature. The V 2p core level spectra well reflect its mixed valence nature. The result of the ARPES spectra clarifies the experimental band structure, reflecting the one-dimensionality of this compound. The lower binding energy side of the V 3d band shows a momentum-dependent modulation with the periodicity of π, suggesting the existence of antiferromagnetic correlations or holon excitations in the one-dimensional Mott insulator.

Original languageEnglish
Pages (from-to)87-90
Number of pages4
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume92
Issue number1-3
Publication statusPublished - 1998 May 1

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Keywords

  • ARPES
  • NaVO
  • One-dimensional quantum-spin system

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry

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