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Persistent URL http://purl.org/net/epubs/work/66430
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Record Id 66430
Title µSR study of magnetic order in the organic quasi-one-dimensional ferromagnet F4BImNN
Abstract The stable organic radical 2-(4,5,6,7-tetrafluorobenzimidazol-2-yl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl (F4BImNN) forms hydrogen-bonded chains in the solid state and exhibits one-dimensional ferromagnetic exchange with J/kB=22 K. We use muon-spin rotation to demonstrate that weak interchain interactions drive the system to long-range magnetic order below Tc=0.72 K. We use density-functional calculations of the muon site and compare our results to those obtained on the nonfluorinated analog compound. Our results show that F4BImNN is the best realization of a one-dimensional Heisenberg ferromagnet among purely organic compounds yet discovered.
Organisation ISIS , STFC , ISIS-HIFI
Keywords ISIS 2013
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Language English (EN)
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Journal Article Phys Rev B 88, no. 6 (2013): 064423. doi:10.1103/PhysRevB.88.064423 2013