Longitudinal spin density wave order in a quasi-1D ising-like quantum antiferromagnet

S. Kimura, M. Matsuda, T. Masuda, S. Hondo, K. Kaneko, N. Metoki, M. Hagiwara, T. Takeuchi, K. Okunishi, Z. He, K. Kindo, T. Taniyama, M. Itoh

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45 Citations (Scopus)

Abstract

From neutron diffraction measurements on a quasi-1D Ising-like Co2+ spin compound BaCo2V2O8, we observed an appearance of a novel type of incommensurate ordering in magnetic fields. This ordering is essentially different from the Néel-type ordering, which is expected for the classical system, and the peculiar spin structure is caused by quantum fluctuation inherent in the quantum spin chain. A Tomonaga-Luttinger liquid nature characteristic of the gapless quantum 1D system is responsible for the realization of the incommensurate ordering.

Original languageEnglish
Article number207201
JournalPhysical review letters
Volume101
Issue number20
DOIs
Publication statusPublished - 2008 Nov 10
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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