Chiral quantum excitations in the anisotropic antiferromagnet CsCoBr3

H. B. Braun, J. Kulda, B. Roessli, D. Visser, K. W. Krämer, H. U. Güdel, P. Böni

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Chirality is shown to emerge as a novel degree of freedom of a quantum soliton in the anisotropic spin-frac(1, 2) compound CsCoBr3. The soliton chirality, detected via polarized neutron scattering, is in agreement with theoretical predictions and is a manifestation of Berry's phase. Our observations provide an explicit example of the emergence of spin currents and hidden chiral order that accompany the disappearance of antiferromagnetic order.

Original languageEnglish
Pages (from-to)1194-1196
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 2
DOIs
StatePublished - Mar 2007

Keywords

  • Antiferromagnet
  • Chirality
  • Low-dimensional magnetism
  • Neutron scattering
  • Soliton

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