A binuclear Fe(III)Dy(III) single molecule magnet. Quantum effects and models

Marilena Ferbinteanu; Takashi Kajiwara; Kwang Yong Choi; Hiroyuki Nojiri; Akio Nakamoto; Norimichi Kojima; Fanica Cimpoesu; Yuichi Fujimura; Shinya Takaishi; Masahiro Yamashita

doi:10.1021/ja062399i

A binuclear Fe(III)Dy(III) single molecule magnet. Quantum effects and models

Marilena Ferbinteanu, Takashi Kajiwara, Kwang Yong Choi, Hiroyuki Nojiri, Akio Nakamoto, Norimichi Kojima, Fanica Cimpoesu, Yuichi Fujimura, Shinya Takaishi, Masahiro Yamashita

Research output: Contribution to journal › Article › peer-review

243 Citations (Scopus)

Abstract

The binuclear [Fe^III(bpca)(μ-bpca)Dy(NO₃)₄], having Single Molecule Magnet (SMM) properties, belonging to a series of isostructural Fe^IIILn^III complexes (Ln = Eu, Gd, Tb, Dy, Ho) and closely related Fe^IILn^III chain structures, was characterized in concise experimental and theoretical respects. The low temperature magnetization data showed hysteresis and tunneling. The anomalous temperature dependence of Mössbauer spectra is related to the onset of magnetic order, consistent with the magnetization relaxation time scale resulting from AC susceptibility measurements. The advanced ab initio calculations (CASSCF and spin-orbit) revealed the interplay of ligand field, spin-orbit, and exchange effects and probed the effective Ising nature of the lowest states, involved in the SMM and tunneling effects.

Original language	English
Pages (from-to)	9008-9009
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	128
Issue number	28
DOIs	https://doi.org/10.1021/ja062399i
Publication status	Published - 2006 Jul 19

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10.1021/ja062399i

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title = "A binuclear Fe(III)Dy(III) single molecule magnet. Quantum effects and models",

abstract = "The binuclear [FeIII(bpca)(μ-bpca)Dy(NO3)4], having Single Molecule Magnet (SMM) properties, belonging to a series of isostructural FeIIILnIII complexes (Ln = Eu, Gd, Tb, Dy, Ho) and closely related FeIILnIII chain structures, was characterized in concise experimental and theoretical respects. The low temperature magnetization data showed hysteresis and tunneling. The anomalous temperature dependence of M{\"o}ssbauer spectra is related to the onset of magnetic order, consistent with the magnetization relaxation time scale resulting from AC susceptibility measurements. The advanced ab initio calculations (CASSCF and spin-orbit) revealed the interplay of ligand field, spin-orbit, and exchange effects and probed the effective Ising nature of the lowest states, involved in the SMM and tunneling effects.",

author = "Marilena Ferbinteanu and Takashi Kajiwara and Choi, {Kwang Yong} and Hiroyuki Nojiri and Akio Nakamoto and Norimichi Kojima and Fanica Cimpoesu and Yuichi Fujimura and Shinya Takaishi and Masahiro Yamashita",

year = "2006",

month = jul,

day = "19",

doi = "10.1021/ja062399i",

language = "English",

volume = "128",

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journal = "Journal of the American Chemical Society",

issn = "0002-7863",

publisher = "American Chemical Society",

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TY - JOUR

T1 - A binuclear Fe(III)Dy(III) single molecule magnet. Quantum effects and models

AU - Ferbinteanu, Marilena

AU - Kajiwara, Takashi

AU - Choi, Kwang Yong

AU - Nojiri, Hiroyuki

AU - Nakamoto, Akio

AU - Kojima, Norimichi

AU - Cimpoesu, Fanica

AU - Fujimura, Yuichi

AU - Takaishi, Shinya

AU - Yamashita, Masahiro

PY - 2006/7/19

Y1 - 2006/7/19

N2 - The binuclear [FeIII(bpca)(μ-bpca)Dy(NO3)4], having Single Molecule Magnet (SMM) properties, belonging to a series of isostructural FeIIILnIII complexes (Ln = Eu, Gd, Tb, Dy, Ho) and closely related FeIILnIII chain structures, was characterized in concise experimental and theoretical respects. The low temperature magnetization data showed hysteresis and tunneling. The anomalous temperature dependence of Mössbauer spectra is related to the onset of magnetic order, consistent with the magnetization relaxation time scale resulting from AC susceptibility measurements. The advanced ab initio calculations (CASSCF and spin-orbit) revealed the interplay of ligand field, spin-orbit, and exchange effects and probed the effective Ising nature of the lowest states, involved in the SMM and tunneling effects.

AB - The binuclear [FeIII(bpca)(μ-bpca)Dy(NO3)4], having Single Molecule Magnet (SMM) properties, belonging to a series of isostructural FeIIILnIII complexes (Ln = Eu, Gd, Tb, Dy, Ho) and closely related FeIILnIII chain structures, was characterized in concise experimental and theoretical respects. The low temperature magnetization data showed hysteresis and tunneling. The anomalous temperature dependence of Mössbauer spectra is related to the onset of magnetic order, consistent with the magnetization relaxation time scale resulting from AC susceptibility measurements. The advanced ab initio calculations (CASSCF and spin-orbit) revealed the interplay of ligand field, spin-orbit, and exchange effects and probed the effective Ising nature of the lowest states, involved in the SMM and tunneling effects.

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DO - 10.1021/ja062399i

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JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 28

ER -

A binuclear Fe(III)Dy(III) single molecule magnet. Quantum effects and models

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