Spin Chirality in a Molecular Dysprosium Triangle: the Archetype of the Non-Collinear Ising Model

Details Spin Chirality in a Molecular Dysprosium Triangle: the Archetype of the Non-Collinear Ising Model Spin Chirality in a Molecular Dysprosium Triangle: the Archetype of the Non-Collinear Ising Model

2008-04-08

arxiv.org/abs/0804.1272v1

Physics

Condensed Matter

Other Condensed Matter

4 pages and 5 figures

Scientific paper

10.1103/PhysRevLett.100.247205

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

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