Magnetic properties of a S = 1/2 zigzag spin chain compound (N2H5)CuCl3

N. Maeshima, M. Hagiwara, Y. Narumi, K. Kindo, Tatsuo Kobayashi, K. Okunishi

Research output: Contribution to journalArticle

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Abstract

Large-scale Computational Science Division, Cybermedia Centre, Osaka University 1-32 Machikaneyamacho, Toyonaka, Osaka 560-0043, JapanWe present a theoretical and experimental study of a quasi-one-dimensional zigzag antiferromagnet (N2H5)CuCl3, which can be viewed as weakly coupled Heisenberg chains with a frustrated interaction. We first discuss generic features of the magnetic properties of the zigzag spin chain between the nearly single chain case and the nearly double chain case, on the basis of the finite temperature density-matrix renormalization group (DMRG) calculations. We next show the experimental results for the magnetic susceptibility and the high-field magnetization of a single crystal of (N2H5)CuCl3 above the Néel temperature TN = 1.55 K. By comparing the experimental data with the DMRG results carefully, we finally obtain the ratio of the nearest and next-nearest exchange couplings as J1/2 = 0.25 with J2/kB = 16.3K. We also investigate the three-dimensional (3D) coupling J′ effect by using mean-field theory combined with the DMRG calculations. The estimated value J′ ∼ 0.04 J2 supports the one-dimensionality of (N2H5)CuCl3 above TN.

Original languageEnglish
Pages (from-to)3607-3618
Number of pages12
JournalJournal of Physics Condensed Matter
Volume15
Issue number21
DOIs
Publication statusPublished - Jun 4 2003
Externally publishedYes

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Magnetic properties
magnetic properties
Mean field theory
Exchange coupling
Magnetic susceptibility
Magnetization
Single crystals
division
Temperature
magnetic permeability
magnetization
temperature
single crystals
interactions

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Magnetic properties of a S = 1/2 zigzag spin chain compound (N2H5)CuCl3. / Maeshima, N.; Hagiwara, M.; Narumi, Y.; Kindo, K.; Kobayashi, Tatsuo; Okunishi, K.

In: Journal of Physics Condensed Matter, Vol. 15, No. 21, 04.06.2003, p. 3607-3618.

Research output: Contribution to journalArticle

Maeshima, N. ; Hagiwara, M. ; Narumi, Y. ; Kindo, K. ; Kobayashi, Tatsuo ; Okunishi, K. / Magnetic properties of a S = 1/2 zigzag spin chain compound (N2H5)CuCl3. In: Journal of Physics Condensed Matter. 2003 ; Vol. 15, No. 21. pp. 3607-3618.
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AB - Large-scale Computational Science Division, Cybermedia Centre, Osaka University 1-32 Machikaneyamacho, Toyonaka, Osaka 560-0043, JapanWe present a theoretical and experimental study of a quasi-one-dimensional zigzag antiferromagnet (N2H5)CuCl3, which can be viewed as weakly coupled Heisenberg chains with a frustrated interaction. We first discuss generic features of the magnetic properties of the zigzag spin chain between the nearly single chain case and the nearly double chain case, on the basis of the finite temperature density-matrix renormalization group (DMRG) calculations. We next show the experimental results for the magnetic susceptibility and the high-field magnetization of a single crystal of (N2H5)CuCl3 above the Néel temperature TN = 1.55 K. By comparing the experimental data with the DMRG results carefully, we finally obtain the ratio of the nearest and next-nearest exchange couplings as J1/2 = 0.25 with J2/kB = 16.3K. We also investigate the three-dimensional (3D) coupling J′ effect by using mean-field theory combined with the DMRG calculations. The estimated value J′ ∼ 0.04 J2 supports the one-dimensionality of (N2H5)CuCl3 above TN.

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