Spin dynamics in a molecular ferrimagnetic ring, [Mn (hfac)2 NITPh]6

T. Itou; S. Funahashi; A. Oyamada; S. Maegawa; K. Fujita; K. Amezawa; R. Yamaguchi

doi:10.1016/j.jmmm.2006.10.457

Spin dynamics in a molecular ferrimagnetic ring, [Mn (hfac)₂ NITPh]₆

T. Itou, S. Funahashi, A. Oyamada, S. Maegawa, K. Fujita, K. Amezawa, R. Yamaguchi

IMRAM - Division of Process and System Engineering

Kyoto University

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

Abstract

We studied the spin dynamics of a ferrimagnetic ring [Mn (hfac)₂ NITPh]₆ with an S = 12 ground state by means of ¹H - NMR experiments under several fields. The spin-lattice relaxation rate increases monotonically with increasing temperature. This monotonous behavior is not reproduced by the calculation based on the lifetimes of eigenstates caused by the spin-phonon interaction. The relaxation rate is possibly caused by the dispersion resulting from the interaction between the clusters, which is far smaller than the interaction in the cluster but comparable to the nuclear Zeeman energy.

Original language	English
Pages (from-to)	1438-1440
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	310
Issue number	2 SUPPL. PART 2
DOIs	https://doi.org/10.1016/j.jmmm.2006.10.457
Publication status	Published - 2007 Mar

Keywords

Ferrimagnetic ring
Molecular magnet
NMR
Spin dynamics

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10.1016/j.jmmm.2006.10.457

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title = "Spin dynamics in a molecular ferrimagnetic ring, [Mn (hfac)2 NITPh]6",

abstract = "We studied the spin dynamics of a ferrimagnetic ring [Mn (hfac)2 NITPh]6 with an S = 12 ground state by means of 1H - NMR experiments under several fields. The spin-lattice relaxation rate increases monotonically with increasing temperature. This monotonous behavior is not reproduced by the calculation based on the lifetimes of eigenstates caused by the spin-phonon interaction. The relaxation rate is possibly caused by the dispersion resulting from the interaction between the clusters, which is far smaller than the interaction in the cluster but comparable to the nuclear Zeeman energy.",

keywords = "Ferrimagnetic ring, Molecular magnet, NMR, Spin dynamics",

author = "T. Itou and S. Funahashi and A. Oyamada and S. Maegawa and K. Fujita and K. Amezawa and R. Yamaguchi",

year = "2007",

month = mar,

doi = "10.1016/j.jmmm.2006.10.457",

language = "English",

volume = "310",

pages = "1438--1440",

journal = "Journal of Magnetism and Magnetic Materials",

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TY - JOUR

T1 - Spin dynamics in a molecular ferrimagnetic ring, [Mn (hfac)2 NITPh]6

AU - Itou, T.

AU - Funahashi, S.

AU - Oyamada, A.

AU - Maegawa, S.

AU - Fujita, K.

AU - Amezawa, K.

AU - Yamaguchi, R.

PY - 2007/3

Y1 - 2007/3

N2 - We studied the spin dynamics of a ferrimagnetic ring [Mn (hfac)2 NITPh]6 with an S = 12 ground state by means of 1H - NMR experiments under several fields. The spin-lattice relaxation rate increases monotonically with increasing temperature. This monotonous behavior is not reproduced by the calculation based on the lifetimes of eigenstates caused by the spin-phonon interaction. The relaxation rate is possibly caused by the dispersion resulting from the interaction between the clusters, which is far smaller than the interaction in the cluster but comparable to the nuclear Zeeman energy.

AB - We studied the spin dynamics of a ferrimagnetic ring [Mn (hfac)2 NITPh]6 with an S = 12 ground state by means of 1H - NMR experiments under several fields. The spin-lattice relaxation rate increases monotonically with increasing temperature. This monotonous behavior is not reproduced by the calculation based on the lifetimes of eigenstates caused by the spin-phonon interaction. The relaxation rate is possibly caused by the dispersion resulting from the interaction between the clusters, which is far smaller than the interaction in the cluster but comparable to the nuclear Zeeman energy.

KW - Ferrimagnetic ring

KW - Molecular magnet

KW - NMR

KW - Spin dynamics

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DO - 10.1016/j.jmmm.2006.10.457

M3 - Article

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SN - 0304-8853

VL - 310

SP - 1438

EP - 1440

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 2 SUPPL. PART 2

ER -

Spin dynamics in a molecular ferrimagnetic ring, [Mn (hfac)₂ NITPh]₆

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Keywords

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