Abstracts 2008

Abstract of Publication No. 584

Oliver Waldmann, Ayuk M. Ako, Hans U. Güdel and Annie K. Powell
Assessment of the Anisotropy in the Molecule Mn19 with a High-Spin Ground State S = 83/2 by 35 GHz Electron Paramagnetic Resonance
Inorg. Chem. 47, 3486-3488 (2008)      Full Text (PDF)      DOI-Link     

Abstract: 35 GHz electron paramagnetic resonance experiments on a powder sample of the magnetic molecule Mn19 with a high-spin ground state S = 83/2 are presented. At low temperatures, the data are well described by the simulated spectra for an isolated spin with a zero-field-splitting parameter D = 0.004 cm1, which is, in particular, positive. Hence, Mn19 is not a single-molecule magnet; the previously observed magnetic hysteresis at ultralow temperatures is likely due to intermolecular dipolar interactions.

Last modified: 13.12.11 by Gabriela Frei