Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 133, Issue 21, Pages 8126-8129Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja202156u
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Funding
- NSERC of Canada
- U.S. NSF [DMR0804408]
- NSERC
- NSF
- State of Florida
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [0924374] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [804408] Funding Source: National Science Foundation
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High-field, single-crystal EPR spectroscopy on a tetragonal bisdiselenazolyl ferromagnet has provided evidence for the presence of easy-axis magnetic anisotropy, with the crystallographic c axis as the easy axis and the oh plane as the hard plane. The observation of a zero-field gap in the resonance frequency is interpreted in terms of an anisotropy field several orders of magnitude larger than that observed in light-heteroatom, nonmetallic ferromagnets and comparable (on a per-site basis) to that observed in hexagonal close packed cobalt. The results indicate that large spin orbit-induced magnetic anisotropies, typically associated with 3d-orbital-based ferromagnets, can also be found in heavy p-block radicals, suggesting that there may be major opportunities for the development of heavy p-block organic magnetic materials.
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