Influence of pressure on a dysprosocenium single-molecule magnet.

Vijay S ParmarAndreas M ThielRizwan NabiGemma K GransburyMarie S NorrePeter EvansSophie C CornerJonathan Michael Skelton Nicholas F Chilton David P Mills Jacob Overgaard

Published in: Chemical communications (Cambridge, England) (2023)

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 ( U eff ) 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.

Keyphrases

single molecule
atomic force microscopy
living cells
molecular dynamics
air pollution
high resolution
magnetic resonance imaging
density functional theory
protein kinase
monte carlo
electron microscopy
mass spectrometry
dual energy