Single-molecule magnet [Tb(hfac)3(2pyNO)] (2pyNO = t-butyl 2-pyridyl nitroxide) with a relatively high barrier of magnetization reversal

Rina Murakami, Takayuki Ishida, Shunsuke Yoshii, Hiroyuki Nojiri

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

The crystallographic analysis of the title compound shows that there are two crystallographically independent molecules in a unit cell. The magnetic study clarified that every molecule behaved as a single-molecule magnet. Two series of the out-of-phase ac susceptibility signals appeared around 10 K even at zero dc field. The activation energies (Δ) for the magnetization reversal were estimated as Δ(1)/kB = 39.2(3) K with τ0(1) = 4.2(4) × 10-8 s and Δ(2)/kB = 36(2) K with τ0 (2) = 4.1(12) × 10-7 s, where τ0 stands for the pre-exponential factor in the Arrhenius analysis. Magnetic hysteresis was recorded at 1.6 K by means of a pulsed-field technique. The role of exchange coupling is discussed.

Original languageEnglish
Pages (from-to)13968-13973
Number of pages6
JournalDalton Transactions
Volume42
Issue number38
DOIs
Publication statusPublished - 2013 Oct 14

ASJC Scopus subject areas

  • Inorganic Chemistry

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