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The Origin of Nonmagnetic Kramers Doublets in the Ground State of Dysprosium Triangles: Evidence for a Toroidal Magnetic Moment

Authors

  • Liviu F. Chibotaru Prof.,

    1. Division of Quantum and Physical Chemistry, Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium, Fax: (+32) 1632-7992
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  • Liviu Ungur,

    1. Division of Quantum and Physical Chemistry, Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium, Fax: (+32) 1632-7992
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  • Alessandro Soncini Dr.

    1. Division of Quantum and Physical Chemistry, Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium, Fax: (+32) 1632-7992
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  • Financial support by the Flemish National Science Foundation and the Flemish Government under the concerted action scheme is gratefully acknowledged. The authors thank Prof. Annie Powell, Karlsruhe and Prof. Roberta Sessoli, Florence for useful discussions and for providing them with digitalized magnetic data.

Abstract

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Triangular donuts: High-level ab initio calculations reveal a toroidal arrangement of local magnetizations at dysprosium sites in the ground state of triangular dysprosium complexes (see picture), an arrangement that explains their unusual magnetic properties.

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