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Electric‐Field Effects on Trimeric Mixed‐Valence Clusters
Author(s) -
Klokishner Sophia I.,
Roman Marianna A.,
Reu Oleg S.
Publication year - 2014
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201402218
Subject(s) - chemistry , condensed matter physics , polarizability , electric field , paramagnetism , dipole , valence (chemistry) , magnetic dipole , cluster (spacecraft) , magnetization , polarization density , magnetic moment , magnetic field , physics , quantum mechanics , organic chemistry , molecule , computer science , programming language
The manifestations of an external direct current (dc) electric field on the magnetic and polarizability characteristics of trimeric Cu II –Cu II –Cu III mixed‐valence clusters were examined. The temperature and field dependence of the magnitude of the mean dipole moment as well as of its components were calculated, and the anisotropy of the cluster polarizability was predicted. The low‐temperature limit of the cluster magnetic moment is determined by the competition between the tunneling and Heisenberg interactions and the interactions with the external electric field. The transition between two paramagnetic states of the cluster caused by the interaction with the electric field leads to the nontrivial field dependence of the magnetic moment. The external electric field offers a unique possibility to manipulate the polarizability and magnetic characteristics of trimeric mixed‐valence clusters.