Magneto-Luminescence Correlation in the Textbook Dysprosium(III) Nitrate Single-Ion Magnet

Ekaterina Mamontova (1) , Jérôme Long (1) , Rute A. S. Ferreira (2) , Alexandre Botas (3, 2) , Dominique Luneau (4) , Yannick Guari (1) , Luis D. Carlos (2) , Joulia Larionova (1)

1 ICGM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier
2 Department of Physics and CICECO
3 CENIMAT/I3N
4 LMI - Laboratoire des Multimatériaux et Interfaces

Multifunctional Single-Molecule Magnets (SMMs) or Single-Ion Magnets (SIMs) are intriguing molecule-based materials presenting an association of the slow magnetic relaxation with other physical properties. In this article, we present an example of a very simple molecule based on Dy 3+ ion exhibiting a field induced SIM property and a characteristic Dy 3+ based emission. The [Dy(NO 3) 3 (H 2 O) 4 ]•2H 2 O (1) complex is characterized by the means of single crystal X-Ray diffraction and their magnetic and photo-luminescent properties are investigated. We demonstrate here that it is possible to correlate the magnetic and luminescent properties and to obtain the Orbach barrier from the low temperature emission spectra, which is often difficult to properly extract from the magnetic measurements, especially in the case of field induced SIMs.

Mots clés: lanthanides; single-ion magnets; single-molecule magnet; luminescence; magnetic relaxation

Domaines: Chimie de coordination

Ekaterina Mamontova, Jérôme Long, Rute A. S. Ferreira, Alexandre Botas, Dominique Luneau, et al.. Magneto-Luminescence Correlation in the Textbook Dysprosium(III) Nitrate Single-Ion Magnet. Magnetochemistry, 2016, 2 (4), pp.41. ⟨10.3390/magnetochemistry2040041⟩. ⟨hal-01399122⟩