Sublimable chloroquinolinate lanthanoid single-ion magnets deposited on 
ferromagnetic electrodes

Miralles, Sara G.; Bedoya-Pinto, Amilcar; Baldovi, J.; Canon-Mancisidor, Walter; Prado, Yoann; Prima-Garcia, Helena; Gaita-Arino, Alejandro; Minguez Espallargas, Guillermo; Hueso, Luis E.; Coronado, Eugenio

doi:10.1039/C7SC03463F

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Sublimable chloroquinolinate lanthanoid single-ion magnets deposited on ferromagnetic electrodes

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Baldovi, J.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Citation

Miralles, S. G., Bedoya-Pinto, A., Baldovi, J., Canon-Mancisidor, W., Prado, Y., Prima-Garcia, H., et al. (2017). Sublimable chloroquinolinate lanthanoid single-ion magnets deposited on ferromagnetic electrodes. Chem. Sci., 9, 199-208. doi:10.1039/C7SC03463F.

Cite as: https://hdl.handle.net/21.11116/0000-0000-2CCD-9

Abstract

A new family of chloroquinolinate lanthanoid complexes of the formula A+[Ln(5,}7Cl2q)4]-{,} with Ln = Y3+{,} Tb3+ and Dy3+ and A+ = Na+{,} NEt4+ and K0.5(NEt4)0.5+{,} is studied{,} both in bulk and as thin films. Several members of the family are found to present single-molecule magnetic behavior in bulk. Interestingly{,} the sodium salts can be sublimed under high vacuum conditions retaining their molecular structures and magnetic properties. These thermally stable compounds have been deposited on different substrates (Al2O3{, Au and NiFe). The magnetic properties of these molecular films show the appearance of cusps in the zero-field cooled curves when they are deposited on permalloy (NiFe). This indicates a magnetic blocking caused by the interaction between the single-ion magnet and the ferromagnet. X-ray absorption spectroscopy confirms the formation of hybrid states at the molecule/metal interface.