Proton NMR in the giant paramagnetic molecule Mo72Fe30

J. K. Jung*, D. Procissi, R. Vincent, B. J. Suh, F. Borsa, P. Kögerler, C. Schröder, M. Luban

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

1H nuclear magnetic resonance (NMR) and relaxation measurements have been performed in the Keplerate species Mo72Fe30. The 1H NMR linewidth increases gradually with decreasing T and it saturates below about 4 K, as expected for a nonmagnetic ground state with S T=0. A strong enhancement of T 1 -1 with a peak around T=2K is observed, a feature similar to the one observed in antiferromagnetically (AF) coupled iron rings. The peak is discussed in terms of the slowing down of magnetic fluctuations resulting from building up of AF correlations.

Original languageEnglish (US)
Pages (from-to)7388-7390
Number of pages3
JournalJournal of Applied Physics
Volume91
Issue number10 I
DOIs
StatePublished - May 15 2002

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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