Spin Chirality in a Molecular Dysprosium Triangle: The Archetype of the Noncollinear Ising Model

2008/04/08 by Javier Luzón, Javier Luzon, Kevin Bernot +6 · 4 citations
Chemistry · Materials Science · Physics and Astronomy · #Advanced NMR Techniques and Applications #Lanthanide and Transition Metal Complexes #Magnetism in coordination complexes #cond-mat.other

paper · pdf · doi:10.1103/physrevlett.100.247205

4 pages and 5 figures

arxiv created 2008/04/08 · openalex publication_date 2008/06/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Single crystal magnetic studies combined with a theoretical analysis show that cancellation of the magnetic moments in the trinuclear Dy³⁺ cluster [Dy₃(\ensuremathμ₃\mathrm\text\ensuremath-OH)₂L₃Cl(H₂O)₅]Cl₃, resulting in a nonmagnetic ground doublet, originates from the noncollinearity of the single-ion easy axes of magnetization of the Dy³⁺ ions that lie in the plane of the triangle at 120\ifmmode^∘\else\textdegree\fi one from each other. This gives rise to a peculiar chiral nature of the ground nonmagnetic doublet and to slow relaxation of the magnetization with abrupt accelerations at the crossings of the discrete energy levels.

Citations

• Quantum Tunneling of Magnetization in Lanthanide Single‐Molecule Magnets: Bis(phthalocyaninato)terbium and Bis(phthalocyaninato)dysprosium Anions

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