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

doi:10.1063/1.1448787

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

Radiology

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

9 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 language	English (US)
Pages (from-to)	7388-7390
Number of pages	3
Journal	Journal of Applied Physics
Volume	91
Issue number	10 I
DOIs	https://doi.org/10.1063/1.1448787
State	Published - May 15 2002

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Physics and Astronomy(all)

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title = "Proton NMR in the giant paramagnetic molecule Mo72Fe30",

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.",

author = "Jung, {J. K.} and D. Procissi and R. Vincent and Suh, {B. J.} and F. Borsa and P. K{\"o}gerler and C. Schr{\"o}der and M. Luban",

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T1 - Proton NMR in the giant paramagnetic molecule Mo72Fe30

AU - Jung, J. K.

AU - Procissi, D.

AU - Vincent, R.

AU - Suh, B. J.

AU - Borsa, F.

AU - Kögerler, P.

AU - Schröder, C.

AU - Luban, M.

PY - 2002/5/15

Y1 - 2002/5/15

N2 - 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.

AB - 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.

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DO - 10.1063/1.1448787

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JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 10 I

ER -

Proton NMR in the giant paramagnetic molecule Mo72Fe30

Abstract

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