NMR and μSR investigation of spin dynamics in {Mo72Fe 30} molecular clusters

E. Micotti, D. Procissi, A. Lascialfari, P. Carretta, P. Kögerler, F. Borsa, M. Luban, C. Baines

Research output: Contribution to journal › Article

5 Citations (Scopus)

Abstract

We present μ+SR and proton NMR data on the molecular cluster {Mo72Fe30} in its standard form (std-Fe30) and in its layered form (lay-Fe30) where the quasi-spherical molecules form a grid. μ+SR experiments on std-Fe30 as a function of the magnetic field at T≈30mK showed that the muon asymmetry has two components, corresponding to different muon sites, near and far from the magnetic ions. At the level crossing we observed an onset of local fields but no anomaly in the relaxation rate. Also a small effect of the spin topology was observed by means of 1H NMR.

Original languageEnglish
Pages (from-to)1099-1101
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume272-276
DOIs
Publication statusPublished - May 2004

Fingerprint

Spin dynamics
molecular clusters
spin dynamics
muons
Nuclear magnetic resonance
nuclear magnetic resonance
Protons
topology
grids
Topology
asymmetry
Ions
anomalies
Magnetic fields
Molecules
protons
magnetic fields
molecules
ions
Experiments

Keywords

  • Level crossing
  • MuSR
  • Nanomagnet
  • Proton NMR

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Micotti, E., Procissi, D., Lascialfari, A., Carretta, P., Kögerler, P., Borsa, F., ... Baines, C. (2004). NMR and μSR investigation of spin dynamics in {Mo72Fe 30} molecular clusters. Journal of Magnetism and Magnetic Materials, 272-276, 1099-1101. https://doi.org/10.1016/j.jmmm.2003.12.038

NMR and μSR investigation of spin dynamics in {Mo72Fe 30} molecular clusters. / Micotti, E.; Procissi, D.; Lascialfari, A.; Carretta, P.; Kögerler, P.; Borsa, F.; Luban, M.; Baines, C.

In: Journal of Magnetism and Magnetic Materials, Vol. 272-276, 05.2004, p. 1099-1101.

Research output: Contribution to journal › Article

Micotti, E, Procissi, D, Lascialfari, A, Carretta, P, Kögerler, P, Borsa, F, Luban, M & Baines, C 2004, 'NMR and μSR investigation of spin dynamics in {Mo72Fe 30} molecular clusters', Journal of Magnetism and Magnetic Materials, vol. 272-276, pp. 1099-1101. https://doi.org/10.1016/j.jmmm.2003.12.038
Micotti E, Procissi D, Lascialfari A, Carretta P, Kögerler P, Borsa F et al. NMR and μSR investigation of spin dynamics in {Mo72Fe 30} molecular clusters. Journal of Magnetism and Magnetic Materials. 2004 May;272-276:1099-1101. https://doi.org/10.1016/j.jmmm.2003.12.038
Micotti, E. ; Procissi, D. ; Lascialfari, A. ; Carretta, P. ; Kögerler, P. ; Borsa, F. ; Luban, M. ; Baines, C. / NMR and μSR investigation of spin dynamics in {Mo72Fe 30} molecular clusters. In: Journal of Magnetism and Magnetic Materials. 2004 ; Vol. 272-276. pp. 1099-1101.
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AU - Micotti, E.

AU - Procissi, D.

AU - Lascialfari, A.

AU - Carretta, P.

AU - Kögerler, P.

AU - Borsa, F.

AU - Luban, M.

AU - Baines, C.

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AB - We present μ+SR and proton NMR data on the molecular cluster {Mo72Fe30} in its standard form (std-Fe30) and in its layered form (lay-Fe30) where the quasi-spherical molecules form a grid. μ+SR experiments on std-Fe30 as a function of the magnetic field at T≈30mK showed that the muon asymmetry has two components, corresponding to different muon sites, near and far from the magnetic ions. At the level crossing we observed an onset of local fields but no anomaly in the relaxation rate. Also a small effect of the spin topology was observed by means of 1H NMR.

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KW - Nanomagnet

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