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

13 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

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Switching of Slow Magnetic Relaxation Dynamics in Mononuclear Dysprosium(III) Compounds with Charge Density'. Together they form a unique fingerprint.

  • Cite this

    Lim, K. S., Baldoví, J. J., Lee, W. R., Song, J. H., Yoon, S. W., Suh, B. J., Coronado, E., Gaita-Ariño, A., & Hong, C. S. (2016). Switching of Slow Magnetic Relaxation Dynamics in Mononuclear Dysprosium(III) Compounds with Charge Density. Inorganic Chemistry, 55(11), 5398-5404. https://doi.org/10.1021/acs.inorgchem.6b00410