Author: Rüdiger Klingeler

0000000000867623

AUTHOR

Rüdiger Klingeler

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High-frequency EPR study on Cu4Cu- and Co4Co-metallacrown complexes

2019

Abstract High-frequency/high-field electron paramagnetic resonance studies on two homonuclear 12-MC-4 metallacrown complexes Cu4Cu and Co4Co are presented. For Cu4Cu, our data imply axial-type g-anisotropy with g x = 2.03 ± 0.01 , g y = 2.04 ± 0.01 , and g z = 2.23 ± 0.01 , yielding g = 2.10 ± 0.02 . No significant zero field splitting (ZFS) of the ground state mode is observed. In Co4Co, we find a m S = ± 3 / 2 ground state with g = 2.66 . The data suggest large anisotropy D of negative sign.

010302 applied physicsPhysicsCondensed Matter - Materials ScienceCondensed Matter - Mesoscale and Nanoscale PhysicsMaterials Science (cond-mat.mtrl-sci)FOS: Physical sciences02 engineering and technologyZero field splitting021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciencesHomonuclear moleculeElectronic Optical and Magnetic Materialslaw.inventionlawMesoscale and Nanoscale Physics (cond-mat.mes-hall)0103 physical sciencesAtomic physics0210 nano-technologyGround stateElectron paramagnetic resonanceAnisotropyMetallacrownJournal of Magnetism and Magnetic Materials

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