Title: Magnetic Properties and Chiral States of a Trimetallic Uranium Complex
Authors: CARRETTA S.AMORETTI G.SANTINI P.MOUGEL VictorMAZZANTI M.GAMBARELLI S.COLINEAU EricCACIUFFO Roberto
Citation: JOURNAL OF PHYSICS-CONDENSED MATTER vol. 25 no. 48 p. 486001
Publisher: IOP PUBLISHING LTD
Publication Year: 2013
JRC N°: JRC79967
ISSN: 0953-8984
URI: http://iopscience.iop.org/0953-8984/25/48/486001/
stacks.iop.org/JPhysCM/25/486001
http://publications.jrc.ec.europa.eu/repository/handle/JRC79967
DOI: 10.1088/0953-8984/25/48/486001
Type: Articles in periodicals and books
Abstract: 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.
JRC Directorate:Nuclear Safety and Security

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