Journal Article

FZJ-2020-03815

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Anisotropy of Co II transferred to the Cr 7 Co polymetallic cluster via strong exchange interactions

Garlatti, E. ; Guidi, T. ; Chiesa, A. ; Ansbro, S. ; Baker, M. L. ; Ollivier, J. ; Mutka, H. ; Timco, G. A. ; Vitorica-Yrezabal, I. ; Pavarini, E.FZJ* ; Santini, P. ; Amoretti, G. ; Winpenny, R. E. P. ; Carretta, S.

2018
RSC Cambridge

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Please use a persistent id in citations: doi:10.1039/C8SC00163D

Abstract: The $Cr_7Co$ ring represents a model system to understand how the anisotropy of a $Co^{II}$ ion is transferred to the effective anisotropy of a polymetallic cluster by strong exchange interactions. Combining sizeable anisotropy with exchange interactions is an important point in the understanding and design of new anisotropic molecular nanomagnets addressing fundamental and applicative issues. By combining electron paramagnetic resonance and inelastic neutron scattering measurements with spin Hamiltonian and ab initio calculations, we have investigated in detail the anisotropy of the $Co^{II}$ ion embedded in the antiferromagnetic ring. Our results demonstrate a strong and anisotropic exchange interaction between the Co and the neighbouring Cr ions, which effectively transmits the anisotropy to the whole molecule.

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Research Program(s):

1. Spin-orbital order-disorder transitions in strongly correlated systems (jiff46_20161101) (jiff46_20161101)

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