Journal Article

FZJ-2017-07825

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Magnetic Exchange Interactions in the Molecular Nanomagnet Mn 12

Chiesa, A. (Corresponding author)FZJ* ; Guidi, T. ; Carretta, S. ; Ansbro, S. ; Timco, G. A. ; Vitorica-Yrezabal, I. ; Garlatti, E. ; Amoretti, G. ; Winpenny, R. E. P. ; Santini, P.

2017
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/15997  doi:10.1103/PhysRevLett.119.217202

Abstract: The discovery of magnetic bistability in Mn12 more than 20 years ago marked the birth of molecular magnetism, an extremely fertile interdisciplinary field and a powerful route to create tailored magnetic nanostructures. However, the difficulty to determine interactions in complex polycentric molecules often prevents their understanding. Mn12 is an outstanding example of this difficulty: although it is the forefather and most studied of all molecular nanomagnets, an unambiguous determination of even the leading magnetic exchange interactions is still lacking. Here we exploit four-dimensional inelastic neutron scattering to portray how individual spins fluctuate around the magnetic ground state, thus fixing the exchange couplings of Mn12 for the first time. Our results demonstrate the power of four-dimensional inelastic neutron scattering as an unrivaled tool to characterize magnetic clusters.

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Contributing Institute(s):

1. Theoretische Nanoelektronik (IAS-3)

Research Program(s):

1. 144 - Controlling Collective States (POF3-144) (POF3-144)

Appears in the scientific report 2017

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Database coverage:
; ; ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF >= 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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