Quantum tunneling of magnetization via well-defined Dy-Cu exchange coupling in a ferrimagnetic high-spin [Dy4Cu] single-molecule magnet

Sohei Ueki, Takayuki Ishida, Takashi Nogami, Kwang Yong Choi, Hiroyuki Nojiri

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

A centrosymmetric rectangular complex [Dy4Cu] was prepared from dysprosium(III) 1,1,1,5,5,5-hexafluoropentane-2,4-dionate and copper(II) dimethylglyoximate. From magnetic studies, the Dy magnetic moments are all aligned parallel at the ground state via antiferromagnetic superexchange interaction with the central Cu spin. In pulsed-field magnetization measurements at 0.5 K, complex [Dy4Cu] exhibited magnetization steps with hysteresis, which is typical of a single-molecule magnet. This behavior is explained in terms of a simple Ising model together with well-defined Dy-Cu exchange coupling (-0.64 K).

Original languageEnglish
Pages (from-to)263-267
Number of pages5
JournalChemical Physics Letters
Volume440
Issue number4-6
DOIs
Publication statusPublished - 2007 Jun 8

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Quantum tunneling of magnetization via well-defined Dy-Cu exchange coupling in a ferrimagnetic high-spin [Dy<sub>4</sub>Cu] single-molecule magnet'. Together they form a unique fingerprint.

  • Cite this