Magnetic Properties of One-Dimensional Heisenberg Chains with Ferromagnetic-Antiferromagnetic Bond Alternation

Masayuki Hagiwara, Yasuo Narumi, Koichi Kindo, Tatsuo C. Kobayashi, Hirokazu Yamakage, Kiichi Amaya, Georg Schumauch

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We report the results of susceptibility and magnetization measurements on ferromagnetic-antiferromagnetic alternating chain compounds [Cu(TIM)]CuCl4 (TIM=2,3,9,10-tetramethyl-1,3,8,10-tetraenecyclo-1,4,8,11-tetraazatetradecane) and (4-BzpipdH)CuCl3 (4-BzpipdH=4-benzylpiperidinium). Magnetization curves of both compounds are compared to those calculated for an S=1 linear-chain Heisenberg antiferromagnet. From the fitting of susceptibility data to a numerical formula calculated for an S=1/2 ferromagnetic-antiferromagnetic alternating chain [Inog. Chem. 33 (1994) 5171], we have estimated the antiferromagnetic exchange constant JAF/kB=2.9 K, the ferromagnetic exchange constant \JF\/kB=4.7 K and the g-value of the magnetic moment g=2.06 for the former and JAF/kB=8.8 K, |JF|/kB=38.8 K and g=2.17 for the latter, which are different from the values reported previously.

Original languageEnglish
Pages (from-to)1792-1795
Number of pages4
JournalJournal of the Physical Society of Japan
Volume66
Issue number6
DOIs
Publication statusPublished - 1997 Jan 1

Keywords

  • Ferromagnetic-antiferromagnetic alternating chain
  • Haldane's conjecture
  • Magnetization
  • Susceptibility

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Magnetic Properties of One-Dimensional Heisenberg Chains with Ferromagnetic-Antiferromagnetic Bond Alternation'. Together they form a unique fingerprint.

  • Cite this

    Hagiwara, M., Narumi, Y., Kindo, K., Kobayashi, T. C., Yamakage, H., Amaya, K., & Schumauch, G. (1997). Magnetic Properties of One-Dimensional Heisenberg Chains with Ferromagnetic-Antiferromagnetic Bond Alternation. Journal of the Physical Society of Japan, 66(6), 1792-1795. https://doi.org/10.1143/JPSJ.66.1792