One-dimensional magnetic order in the metal-organic framework Tb(HCOO)3
Variable-temperature neutron scattering measurements, reverse Monte Carlo analysis, and direct Monte Carlo simulation are used to characterize magnetic order in the metal-organic framework (MOF) Tb(HCOO)3 over the temperature range 100 to 1.6 K=TN. The magnetic transition at TN is shown to involve o...
| Main Authors: | , , , , |
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| 格式: | Journal article |
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American Physical Society
2016
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| 总结: | Variable-temperature neutron scattering measurements, reverse Monte Carlo analysis, and direct Monte Carlo simulation are used to characterize magnetic order in the metal-organic framework (MOF) Tb(HCOO)3 over the temperature range 100 to 1.6 K=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 magnetization of ferromagnetic chains tends to alternate between neighboring 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 stabilized by the contrasting strength of inter- and intrachain magnetic coupling, itself a consequence of the underlying MOF architecture. Our results demonstrate how MOFs may provide an attractive if as yet underexplored platform for the realization and investigation of low-dimensional physics. |
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