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Lah, Myoung Soo
Nanoporous Materials Lab
Research Interests
  • Metal-Organic Frameworks (MOFs)

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Magnetic properties of hexanuclear manganese antiferromagnetic clusters {Mn6}

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Title
Magnetic properties of hexanuclear manganese antiferromagnetic clusters {Mn6}
Author
Han, KHKim, BJSuh, BJBelesi, MMoon, DLee, KLah, Myoung Soo
Keywords
Antiferromagnetic clusters;  Hexanuclear manganese (Mn6);  Molecular rings;  Relaxation rate
Issue Date
200604
Publisher
AMER INST PHYSICS
Citation
JOURNAL OF APPLIED PHYSICS, v.99, no.8, pp. -
Abstract
We report a study of magnetic properties of a series of hexanuclear manganese metallamacrocycles {Mn6}. The magnetic properties are characterized by antiferromagnetic (AFM) coupling constants J1 kB ≈-4.0 K, between the nearest neighbors, and J2 kB ≈-1.2 K, between the next-nearest neighbors. The temperature dependence of H1 NMR linewidth is observed to be consistent with the AFM singlet ground state with a total spin ST =0. H1 nuclear spin-lattice relaxation rate 1 T1 shows a strong enhancement at low temperatures with a peak around T≈ J1, as commonly observed in AFM molecular rings and clusters.
URI
http://scholarworks.unist.ac.kr/handle/201301/5993
DOI
http://dx.doi.org/10.1063/1.2169572
ISSN
0021-8979
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SNS_Journal Papers
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