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Correlating Blocking Temperatures in Single Molecule Magnets with Raman Relaxation

preprint
submitted on 10.09.2018 and posted on 11.09.2018 by Marcus J. Giansiracusa, Andreas Kostopoulos, George F. S. Whitehead, David Collison, Floriana Tuna, Richard Winpenny, Nicholas Chilton
We report a six coordinate DyIII single-molecule magnet
(SMM) with an energy barrier of 1110 K for thermal relaxation of
magnetization. The sample shows no retention of magnetization
even at 2 K and this led us to find a good correlation between the
blocking temperature and the Raman relaxation regime for SMMs.
The key parameter is the relaxation time (𝜏switch) at the point where
the Raman relaxation mechanism becomes more important than
Orbach.

Funding

The University of Manchester; Ramsay Memorial Fellowships Trust; EPSRC(UK); Higher Committee for Education Development in Iraq

History

Email Address of Submitting Author

richard.winpenny@manchester.ac.uk

Institution

University of Manchester

Country

United Kingdom

ORCID For Submitting Author

0000-0002-7101-3963

Declaration of Conflict of Interest

No conflict of interest

Version Notes

Version of August 29th 2018

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