Theoretical analysis of the experiments on the double-spin-chain compound KCuCl3

Tota Nakamura, Kiyomi Okamoto

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

We have analyzed the experimental susceptibility data of KCuCl3 and found that the data are well explained by the double-spin-chain models with strong antiferromagnetic dimerization. Large quantum Monte Carlo calculations were performed in the spin systems with frustration. This was made possible by removing the negative-sign problem with the use of the dimer basis that has spin-reversal symmetry. The numerical data agree with the experimental data within 1% relative errors in the whole temperature region. We also present a theoretical estimate for the dispersion relation and compare it with recent neutron-scattering experiments. Finally, the magnitude of each interaction bond is predicted.

Original languageEnglish
Pages (from-to)2411-2414
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume58
Issue number5
Publication statusPublished - 1998 Aug 1
Externally publishedYes

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Dimerization
Neutron scattering
Dimers
Experiments
frustration
dimerization
Temperature
neutron scattering
dimers
magnetic permeability
symmetry
estimates
interactions
temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Theoretical analysis of the experiments on the double-spin-chain compound KCuCl3. / Nakamura, Tota; Okamoto, Kiyomi.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 58, No. 5, 01.08.1998, p. 2411-2414.

Research output: Contribution to journalArticle

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