Ab initio investigation of the non-collinear magnetic structure and the lowest magnetic excitations in dysprosium triangles
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- 8 April 2009
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in New Journal of Chemistry
- Vol. 33 (6), 1224-1230
- https://doi.org/10.1039/b903126j
Abstract
The unusual magnetism exhibited by dysprosium triangles [Dy3(μ3-OH)2L3Cl2(H2O)4][Dy3(μ3-OH)2L3Cl(H2O)5]Cl5·19H2O is explained using the recently developed ab initio methodology for the simulation of magnetic properties of complexes. The local anisotropy axes on the dysprosium sites are found to lie in the plane of the Dy3 triangle and to make angles of ca. 120° with each other. The small antiferromagnetic exchange interaction between sites leads to a non-magnetic Kramers doublet in the ground state of the complex. The arrangement of the local magnetization vectors in this state is close to toroidal. By contrast, the lowest excited states are characterized by a huge magnetic moments of ca. 20 μB and show very different behavior of magnetization for fields applied along and perpendicular to the plane of the Dy3 triangle.Keywords
This publication has 28 references indexed in Scilit:
- Detailed Magnetic Studies on Co(N3)2(4-acetylpyridine)2: a Weak-Ferromagnet with a Very Big Canting AngleInorganic Chemistry, 2008
- The Canted Antiferromagnetic Approach to Single-Chain MagnetsJournal of the American Chemical Society, 2008
- Giant Coercivity in a One-Dimensional Cobalt-Radical Coordination MagnetJournal of the American Chemical Society, 2007
- First NiII–LnIII Coordination Polymers Constructed by Using [Ni(bpca)2] as a Building Block [Hbpca = bis(2‐pyridylcarbonyl)amine]: Synthesis, Crystal Structures and Magnetic PropertiesEuropean Journal of Inorganic Chemistry, 2007
- The Origin of Transverse Anisotropy in Axially Symmetric Single Molecule MagnetsJournal of the American Chemical Society, 2007
- A rational approach to the modulation of the dynamics of the magnetisation in a dysprosium–nitronyl-nitroxide radical complexChemical Communications, 2007
- Single-Chain Magnets:Theoretical Approach and Experimental SystemsPublished by Springer Science and Business Media LLC ,2006
- Preparation of Novel Materials Using SMMsPublished by Springer Science and Business Media LLC ,2006
- A Single-Chain Magnet Formed by a Twisted Arrangement of Ions with Easy-Plane Magnetic AnisotropyJournal of the American Chemical Society, 2005
- Quantum Tunneling of Magnetization and Related Phenomena in Molecular MaterialsAngewandte Chemie, 2003