Giant Exchange Coupling Evidenced with a Magnetization Jump at 52 T for a Gadolinium-Nitroxide Chelate

Takuya Kanetomo, Takumi Kihara, Atsushi Miyake, Akira Matsuo, Masashi Tokunaga, Koichi Kindo, Hiroyuki Nojiri, Takayuki Ishida

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The Gd-radical complex [GdIII(hfac)3(6bpyNO)] (6bpyNO = 2,2′-bipyridin-6-yl tert-butyl nitroxide; Hhfac = 1,1,1,5,5,5-hexafluoropentane-2,4-dione) showed a magnetization jump at 52 T observed in a pulsed-field facility, corresponding to an exchange coupling constant of −17.4 K. Furthermore, hysteretic behavior due to a relatively slow magnetization reversal was recorded around 2 T. From the high-frequency EPR study, the exchange coupling between Gd and radical spins accompanies an anisotropic character, which is responsible for both the broad jump and the slow magnetization reversal.

Original languageEnglish
Pages (from-to)3310-3314
Number of pages5
JournalInorganic chemistry
Volume56
Issue number6
DOIs
Publication statusPublished - 2017 Mar 20

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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