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Regensburg 2013 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 50: Poster II

MA 50.82: Poster

Freitag, 15. März 2013, 10:30–13:30, Poster D

1H-NMR in the heterometallic complex Mn2Ni3 — •Marco Günther1, Liang Gong1, Markus Brettschneider1, Evgenia Vavilova2, Vladislav Kataev3, Animesh Das4, Franc Meyer4, and Hans-Henning Klauß11Institut für Festkörperphysik, TU Dresden — 2Kazan Physical-Technical Institute — 3Leibniz-Institute for Solid State and Materials Research IFW Dresden — 4Institut für Inorganic Chemistry, Georg-August-University Göttingen

We studied the quasi-linear heterometallic complex Mn2Ni3, a recently synthesized single-molecule magnet by means of solid state proton NMR. The proton spectra is observed down to T=1.5 K where strong static hyperfine fields due to the |Stotz =-7> ground state arise. The spectra is simulated with respect to the dipole summation of electronic moments at the local probe sites.

Proton T1-relaxation rate probes the electronic dynamics in the paramagnetic regime down to the ground state formation within two orders of magnitude. For the lowest temperatures, we present our measurements of the field-depending relaxation experiments.

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