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A Model of Single Molecule Magnet Behaviour of 3d-4f Clusters

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Abstract:

We report a model for the explanation of the single molecule magnet behavior of the [CuIILTbIII (hfac)2]2 cluster. The model takes into account the crystal field acting on the TbIII ion and the exchange interaction between TbIII and CuII ions. The energies of the low-lying levels are shown to increase with the decrease of the mean value of the Z-projection of the total angular momentum of the cluster, thus forming a barrier for magnetization reversal that is in accordance with the experimental evidence.

Keywords: BARRIER FOR REVERSAL MAGNETIZATION; EXCHANGE INTERACTION; LANTHANIDE AND TRANSITION METAL IONS; MAGNETIC SUSCEPTIBILITY; SINGLE MOLECULE MAGNET

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jno.2009.1010

Publication date: April 1, 2009

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  • Journal of Nanoelectronics and Optoelectronics (JNO) is an international and cross-disciplinary peer reviewed journal to consolidate emerging experimental and theoretical research activities in the areas of nanoscale electronic and optoelectronic materials and devices into a single and unique reference source. JNO aims to facilitate the dissemination of interdisciplinary research results in the inter-related and converging fields of nanoelectronics and optoelectronics.
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