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One-dimensional magnetic order in the metal–organic framework Tb(HCOO)3

Saines, P.J., Harcombe, D.R, Welch, P.G, Manuel, P., Goodwin, A.L (2016) One-dimensional magnetic order in the metal–organic framework Tb(HCOO)3. Physical Review B: Condensed Matter and Materials Physics, 94 . ISSN 0163-1829. (doi:10.1103/PhysRevB.94.174429) (KAR id:58813)

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Variable-temperature neutron scattering measurements, reverse Monte Carlo analysis and direct Monte Carlo simulation are used to characterise magnetic order in the metal–organic framework (MOF) Tb(HCOO)3 over the temperature range 100K to 1.6K = TN. The magnetic transition at TN is shown to involve one-dimensional ferromagnetic ordering to a partially-ordered state related to the triangular Ising antiferromagnet and distinct from the canonical “partially-disordered antiferromagnet” model. In this phase, the direction of magnetisation of ferromagnetic chains tends to alternate between neighbouring chains but this alternation is frustrated and is not itself ordered. We suggest the existence of low-dimensional magnetic order in Tb(HCOO)3 is stabilised by the contrasting strength of inter- and intra-chain magnetic coupling, itself a consequence of the underlying MOF architecture. Our results demonstrate how MOFs may provide an attractive if as yet under-explored platform for the realisation and investigation of low-dimensional physics.

Item Type: Article
DOI/Identification number: 10.1103/PhysRevB.94.174429
Subjects: Q Science
Q Science > QD Chemistry
Divisions: Faculties > Sciences > School of Physical Sciences
Depositing User: Michael Woods
Date Deposited: 21 Nov 2016 14:17 UTC
Last Modified: 23 Jan 2020 04:12 UTC
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