Switching of Slow Magnetic Relaxation Dynamics in Mononuclear Dysprosium(III) Compounds with Charge Density
NAGIOS: RODERIC FUNCIONANDO

Switching of Slow Magnetic Relaxation Dynamics in Mononuclear Dysprosium(III) Compounds with Charge Density

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Switching of Slow Magnetic Relaxation Dynamics in Mononuclear Dysprosium(III) Compounds with Charge Density

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Soo Lim, Kwang; Baldoví, José J. Perfil; Ram Lee, Woo; Hwa Song, Jeong; Won Yoon, Sung; Jin Suh, Byoung; Coronado Miralles, Eugenio Perfil; Gaita Ariño, Alejandro Perfil; Seop Hong, Chang
This document is a artículoDate2016
The symmetry around a Dy ion is recognized to be a crucial parameter dictating magnetization relaxation dynamics. We prepared two similar square-antiprismatic complexes, [Dy(LOMe)2(H2O)2](PF6) (1) and Dy(LOMe)2(NO3) (2), where LOMe = [CpCo{P(O)(O(CH3))2}3], including either two neutral water molecules (1) or an anionic nitrate ligand (2). We demonstrated that in this case relaxation dynamics is dramatically affected by the introduction of a charged ligand, stabilizing the easy axis of magnetization along the nitrate direction. We also showed that the application of either a direct-current field or chemical dilution effectively stops quantum tunneling in the ground state of 2, thereby increasing the relaxation time by over 3 orders of magnitude at 3.5 K.

    Kwang Soo Lim, José J Baldoví, Woo Ram Lee, Jeong Hwa Song, Sung Won Yoon, Byoung Jin Suh, Eugenio Coronado, Alejandro Gaita-Ariño, Chang Seop Hong. (2016) Switching of Slow Magnetic Relaxation Dynamics in Mononuclear Dysprosium(III) Compounds with Charge Density. Inorg. Chem. 2016, 55, 11, 5398–5404
http://dx.doi.org/10.1021/acs.inorgchem.6b00410

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