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

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

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)5398-5404
Number of pages7
JournalInorganic Chemistry
Volume55
Issue number11
DOIs
Publication statusPublished - 2016 Jun 6

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Dysprosium
Magnetic relaxation
dysprosium
magnetic relaxation
Charge density
Nitrates
nitrates
Magnetization
Ligands
magnetization
ligands
Relaxation time
Ground state
Dilution
dilution
relaxation time
direct current
Ions
Molecules
ground state

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry

Cite this

Switching of Slow Magnetic Relaxation Dynamics in Mononuclear Dysprosium(III) Compounds with Charge Density. / Lim, Kwang Soo; Baldoví, José J.; Lee, Woo Ram; Song, Jeong Hwa; Yoon, Sung Won; Suh, Byoung Jin; Coronado, Eugenio; Gaita-Ariño, Alejandro; Hong, Chang Seop.

In: Inorganic Chemistry, Vol. 55, No. 11, 06.06.2016, p. 5398-5404.

Research output: Contribution to journalArticle

Lim, KS, Baldoví, JJ, Lee, WR, Song, JH, Yoon, SW, Suh, BJ, Coronado, E, Gaita-Ariño, A & Hong, CS 2016, 'Switching of Slow Magnetic Relaxation Dynamics in Mononuclear Dysprosium(III) Compounds with Charge Density', Inorganic Chemistry, vol. 55, no. 11, pp. 5398-5404. https://doi.org/10.1021/acs.inorgchem.6b00410
Lim, Kwang Soo ; Baldoví, José J. ; Lee, Woo Ram ; Song, Jeong Hwa ; Yoon, Sung Won ; Suh, Byoung Jin ; Coronado, Eugenio ; Gaita-Ariño, Alejandro ; Hong, Chang Seop. / Switching of Slow Magnetic Relaxation Dynamics in Mononuclear Dysprosium(III) Compounds with Charge Density. In: Inorganic Chemistry. 2016 ; Vol. 55, No. 11. pp. 5398-5404.
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AU - Yoon, Sung Won

AU - Suh, Byoung Jin

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