Direct spectroscopic evidence of holons in a quantum antiferromagnetic spin-1/2 chain

M. Z. Hasan, Y. D. Chuang, Y. Li, P. Montano, M. Beno, Z. Hussain, H. Eisaki, S. Uchida, T. Gog, D. M. Casa

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We report charge dynamics of a quantum spin-1/2 chain (SrCuO2) over the complete Brillouin zone using the momentum tunability of inelastic X-ray scattering. Excitations at the insulating gap edge are found to be highly dispersive. Observed dispersions are consistent with charge fluctuations involving holons unique to 1-D spin-1/2 quantum systems.

Original languageEnglish (US)
Pages (from-to)3479-3483
Number of pages5
JournalInternational Journal of Modern Physics B
Volume17
Issue number18-20 II
DOIs
StatePublished - Aug 10 2003

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

Keywords

  • Correlated electrons
  • Holon
  • Inelastic x-ray scattering
  • Mott insulators
  • Resonant

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