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|Title:||Low-energy Spectrum of a Tm-based Double-decker Complex|
|Authors:||MAGNANI Nicola; CACIUFFO Roberto; COLINEAU Eric; WASTIN Franck; BARALDI A.; BUFFAGNI E.; CAPELLETTI R.; CARRETTA S.; MAZZERA M.; ADROJA D. T.; WATANABE M.; NAKAMURA A.|
|Citation:||PHYSICAL REVIEW B vol. 79 p. 104407|
|Publisher:||AMER PHYSICAL SOC|
|Type:||Contributions to Conferences|
|Abstract:||The magnetic and electronic properties of a Tm-based ¿double-decker¿ phtalocyanine complex are extensively investigated by several spectroscopic optical absorption, inelastic neutron-scattering and bulk specific-heat techniques. The resulting low-energy spectrum is exploited to obtain direct information on the ligand field. We show that the literature value of the second-order parameter A2 0 is significantly overestimated and that the additional parameters arising from the true C4 point symmetry instead of the usually assumed ideal D4d symmetry at the rare-earth site cannot be neglected on this energy scale, while the presence of further symmetry reduction at low temperature is highly unlikely. The effect of the proposed ligand-field parameters on the relaxation properties of the Tb-based double-decker single-molecule magnet is briefly discussed.|
|JRC Institute:||Institute for Transuranium Elements|
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