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- Lah, Myoung Soo
- Frontier Energy Storage Material Lab.
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Magnetic properties of hexanuclear manganese antiferromagnetic clusters {Mn6}
- Issued Date
- 2006-04
- Citation
- JOURNAL OF APPLIED PHYSICS, v.99, no.8, pp.1 - 3
- 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.
- Publisher
- AMER INST PHYSICS
- ISSN
- 0021-8979
- Keyword
- SPIN DYNAMICS, NUCLEARITY, H-1-NMR, RINGS, SIZE
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