Title: Spectroscopic and magnetic investigations of actinide-based nanomagnets
Authors: MAGNANI Nicola
Citation: INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY vol. 114 no. 12 p. 755-759
Publication Year: 2014
JRC N°: JRC88612
ISSN: 0020-7608
URI: http://onlinelibrary.wiley.com/doi/10.1002/qua.24656/abstract
DOI: 10.1002/qua.24656
Type: Articles in periodicals and books
Abstract: Magnetic exchange is an essential feature of transition-metal nanomagnets because it combines the relatively low spin-only moments of several ions into a “giant spin” ground state, which can make slow magnetic relaxation very favorable in an axially anisotropic environment. In contrast, most of the early research on lanthanidebased complexes focused on single-ion magnets, where the required large moment is generated by the unquenched orbital contribution (which is parallel to the spin in heavy rare earths). With their unfilled 5f electronic shell being on the verge between localization and itinerancy, actinides are expected to combine the best of both 3d and 4f metals in terms of exchange and anisotropy, and are therefore under consideration as potential building blocks for the next generation of single-molecule magnets. In this Perspective, a review of the recent development in this field is given, and some discrepancies between the spectroscopic and magnetic data are discussed.
JRC Directorate:Nuclear Safety and Security

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