Ferromagnetic coupling in an Fe[C(SiMe3)3]2/ferrihydrite hetero-mixture molecular magnet

E. Kuzmann, Giorgio Zoppellaro, Jiri Pechousek, Jan Cuda, Z. Klencsár, Z. Homonnay, Jiri Tucek, Roland Szalay, Mátyás Pápai, Libor Machala, Radek Zboril

Research output: Contribution to journalArticle

Abstract

Magnetization and low temperature in-field 57Fe Mössbauer spectroscopy measurements have been performed on a Fe[C(SiMe3)3]2/ferrihydrite hetero-mixture. The results indicate the presence of ferromagnetic coupling of magnetic moments involving Fe[C(SiMe3)3]2 with a hyperfine magnetic field of about 151 T, attributable mainly to the non-frozen atomic orbital contribution. The present findings show the sensitivity of single-ion molecular magnets to local alterations of their lattice-environment and might explain and reconcile some of the differences found in the literature for the observed bulk magnetic properties of the title Fe[C(SiMe3)3]2 compound. The presented Mössbauer spectroscopy and magnetic susceptibility study performed on a Fe[C(SiMe3)3]2/ferrihydrite hetero-mixture showed that the single ion molecular magnet, Fe[C(SiMe3)3]2, displayed an effective magnetic field of 156 T at 5 K in an external magnetic field of 5 T, indicating ferromagnetic coupling in the Fe[C(SiMe3)3]2/ferrihydrite magnetic material.

Original languageEnglish
Pages (from-to)3178-3183
Number of pages6
JournalEuropean Journal of Inorganic Chemistry
Volume2014
Issue number20
DOIs
Publication statusPublished - Jul 1 2015

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Magnets
Magnetic fields
Spectroscopy
Ions
Magnetic materials
Magnetic moments
Magnetic susceptibility
Magnetization
Magnetic properties
ferrihydrite
Temperature

Keywords

  • Iron
  • Magnetic properties
  • Metal-organic frameworks
  • Molecular magnets
  • Mössbauer spectroscopy

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Ferromagnetic coupling in an Fe[C(SiMe3)3]2/ferrihydrite hetero-mixture molecular magnet. / Kuzmann, E.; Zoppellaro, Giorgio; Pechousek, Jiri; Cuda, Jan; Klencsár, Z.; Homonnay, Z.; Tucek, Jiri; Szalay, Roland; Pápai, Mátyás; Machala, Libor; Zboril, Radek.

In: European Journal of Inorganic Chemistry, Vol. 2014, No. 20, 01.07.2015, p. 3178-3183.

Research output: Contribution to journalArticle

Kuzmann, E, Zoppellaro, G, Pechousek, J, Cuda, J, Klencsár, Z, Homonnay, Z, Tucek, J, Szalay, R, Pápai, M, Machala, L & Zboril, R 2015, 'Ferromagnetic coupling in an Fe[C(SiMe3)3]2/ferrihydrite hetero-mixture molecular magnet', European Journal of Inorganic Chemistry, vol. 2014, no. 20, pp. 3178-3183. https://doi.org/10.1002/ejic.201402033
Kuzmann, E. ; Zoppellaro, Giorgio ; Pechousek, Jiri ; Cuda, Jan ; Klencsár, Z. ; Homonnay, Z. ; Tucek, Jiri ; Szalay, Roland ; Pápai, Mátyás ; Machala, Libor ; Zboril, Radek. / Ferromagnetic coupling in an Fe[C(SiMe3)3]2/ferrihydrite hetero-mixture molecular magnet. In: European Journal of Inorganic Chemistry. 2015 ; Vol. 2014, No. 20. pp. 3178-3183.
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