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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/53076
Record Status
Checked
Record Id
53076
Title
Inelastic neutron scattering and frequency-domain magnetic resonance studies of S=4 and S=12 Mn6 single-molecule magnets
Contributors
O Pieper
,
T Guidi (STFC Rutherford Appleton Lab.)
,
S Carretta
,
J van Slageren
,
FEl Hallak
,
B Lake
,
P Santini
,
G Amoretti
,
H Mutka
,
M Koza
,
M Russina
,
A Schnegg
,
CJ Milios
,
EK Brechin
,
A JuliĆ
,
J Tejada
Abstract
We investigate the magnetic properties of three Mn6 single-molecule magnets by means of inelastic neutron scattering and frequency domain magnetic resonance spectroscopy. The experimental data reveal that small structural distortions of the molecular geometry produce a significant effect on the energy-level diagram and therefore on the magnetic properties of the molecule. We show that the giant spin model completely fails to describe the spin-level structure of the ground spin multiplets. We analyze theoretically the spin Hamiltonian for the low-spin Mn6 molecule (S=4) and we show that the excited S multiplets play a key role in determining the effective energy barrier for the magnetization reversal, in analogy to what was previously found for the two high spin Mn6 (S=12) molecules [S. Carretta et al., Phys. Rev. Lett. 100, 157203 (2008)].
Organisation
ISIS
,
ISIS-ILL
,
STFC
Keywords
molecular nanomagnets
Funding Information
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Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Journal Article
Phys Rev B
81, no. 17 (2010): 174420.
doi:10.1103/PhysRevB.81.174420
2010
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