Observation of elementary excitations of quantum sine-gordon spin system KCuGaF 6 under high magnetic field

I. Umegaki, H. Tanaka, T. Ono, H. Nojiri

Research output: Contribution to journalArticlepeer-review

Abstract

In magnetic field, KCuGaF 6 can be mapped onto the quantum sine-Gordon model, for which low-energy elementary excitations are solitons, antisolitons and their bound states breathers. Using high-frequency, high-field ESR measurements, we observed these unusual magnetic excitations.

Original languageEnglish
Pages (from-to)60-63
Number of pages4
JournalJournal of Low Temperature Physics
Volume159
Issue number1-2
DOIs
Publication statusPublished - 2010 Apr 1

Keywords

  • 1D Heisenberg antiferromagnet
  • Elementary excitations
  • Quantum sine-Gordon model

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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