The magnetic properties of the triangular molecular nanomagnet TUO2LU3 (L D
2-(4-tolyl)-1,3-bis(quinolyl)malondiiminate) have been investigated through electron
paramagnetic resonance spectroscopy, high-field magnetization and susceptibility
measurements. The experimental findings are well reproduced by a microscopic model
including exchange interactions and local crystal fields. These results show that TUO2LU3 is
characterized by a non-magnetic ground doublet corresponding to two oppositely twisted
chiral arrangements of the uranium moments. The non-axial character of single-ion crystal
fields leads to quantum tunneling of the noncollinear magnetization in the presence of a
magnetic field applied perpendicularly to the triangle plane.
CARRETTA S.;
AMORETTI G.;
SANTINI P.;
MOUGEL Victor;
MAZZANTI M.;
GAMBARELLI S.;
COLINEAU Eric;
CACIUFFO Roberto;
2013-11-20
IOP PUBLISHING LTD
JRC79967
0953-8984,
http://iopscience.iop.org/0953-8984/25/48/486001/,
stacks.iop.org/JPhysCM/25/486001,
https://publications.jrc.ec.europa.eu/repository/handle/JRC79967,
10.1088/0953-8984/25/48/486001,
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