Influence of pressure on a dysprosocenium single-molecule magnet
Vijay S Parmar1, Andreas M Thiel1, Rizwan Nabi2
1Department of Chemistry, Aarhus University, Langelandsgade 140, Aarhus C DK-8000, Denmark. jacobo@chem.au.dk.
Chemical Communications (Cambridge, England)
|February 13, 2023
Abstract:
The effects of external pressure on a high-performing dysprosocenium single-molecule magnet are investigated using a combination of X-ray diffraction, magnetometry and theoretical calculations. The effective energy barrier (Ueff) decreases from ca. 1300 cm-1 at ambient pressure to ca. 1125 cm-1 at 3 GPa. Our results indicate that compression < 1.2 GPa has a negligible effect on the Orbach process, but magnetic relaxation > 1 GPa increases via Raman relaxation and/or quantum tunnelling of magnetisation.
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