Spin dynamics in a molecular ferrimagnetic ring, [Mn (hfac)2 NITPh]6

T. Itou, S. Funahashi, A. Oyamada, S. Maegawa, K. Fujita, K. Amezawa, R. Yamaguchi

Research output: Contribution to journalArticlepeer-review


We studied the spin dynamics of a ferrimagnetic ring [Mn (hfac)2 NITPh]6 with an S = 12 ground state by means of 1H - NMR experiments under several fields. The spin-lattice relaxation rate increases monotonically with increasing temperature. This monotonous behavior is not reproduced by the calculation based on the lifetimes of eigenstates caused by the spin-phonon interaction. The relaxation rate is possibly caused by the dispersion resulting from the interaction between the clusters, which is far smaller than the interaction in the cluster but comparable to the nuclear Zeeman energy.

Original languageEnglish
Pages (from-to)1438-1440
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Issue number2 SUPPL. PART 2
Publication statusPublished - 2007 Mar


  • Ferrimagnetic ring
  • Molecular magnet
  • NMR
  • Spin dynamics


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