Giant field dependence of the low temperature relaxation of the magnetization in a dysprosium(III)-DOTA complex.

Chem Commun (Camb)

Department of Chemistry Ugo Schiff and INSTM Research Unit, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy.

Published: April 2011

The square antiprismatic Na[Dy(DOTA)(H(2)O)]·4H(2)O complex was characterised by single crystal X-ray diffraction and ac magnetic susceptometry. Two competing mechanisms for magnetic relaxation as well as the remarkable increase of six orders of magnitude in the relaxation time upon application of a static magnetic field were detected.

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http://dx.doi.org/10.1039/c0cc05850eDOI Listing

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