Magnetization Process of the S = 1/2 and 1 Ferrimagnetic Chain and Dimer

Masayuki Hagiwara, Yasuo Narumi, Kazuhiko Minami, Keiji Tatani, Koichi Kindo

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)


We report the results of magnetization measurements on powder samples of [NiCu(pba)(D2O)3]·2D2O (pba = 1,3-propylenebis(oxamato),C7H6N2O6) and [Ni(dpt)(H2O)Cu(pba)]·2H2O (dpt = bis-(3-aminopropyl)amine, C6H17N3), which are regarded as the S = 1/2 and 1 ferrimagnetic chain and dimer, respectively. The magnetization curve in pulsed magnetic fields up to about 50 T of each compound shows an increase with increasing field at low magnetic fields and reaches a plateau of about 1,1 μB/(formula unit) which corresponds to about one-third of the saturation magnetization. Magnetization of the former compound in static magnetic fields up to 7T is compared with that of the latter one in addition to the comparison of results of some numerical calculations. We have found that the ferrimagnetic chain has a ferromagnetic feature at low magnetic fields in contrast to the ferrimagnetic dimer and that the calculated magnetization increases with increasing number of composed spins.

Original languageEnglish
Pages (from-to)2214-2217
Number of pages4
Journaljournal of the physical society of japan
Issue number7
Publication statusPublished - 1999 Jul


  • Magnetization
  • Quantum ferrimagnet
  • Spin alternating chain

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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