Determination of the hyperfine magnetic field in magnetic carbon-based materials: DFT calculations and NMR experiments
Year: 2015
Type: article
Abstract: The prospect of carbon-based magnetic materials is of immense fundamental and practical importance, and information on atomic-scale features is required for a better understanding of the mechanisms leading to carbon magnetism. Here we report the first direct detection of the microscopic magnetic field produced at (13)C nuclei in a ferromagnetic carbon material by zero-field nuclear magnetic resonance (NMR). Electronic structure calculations carried out in nanosized model systems with different classes of structural defects show a similar range of magnetic field values (18-21 T) for all investigated systems, in agreement with the NMR experiments. Our results are strong evidence of the intrinsic nature of defect-induced magnetism in magnetic carbons and establish the magnitude of the hyperfine magnetic field created in the neighbourhood of the defects that lead to magnetic order in these materials.
Source: Scientific Reports
DOI: 10.1038/srep14761
Language: English
Subfield: Spectroscopy
Field: Chemistry
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,690
Funders: Jane Coffin Childs Memorial Fund for Medical Research, Sveučilište u Zagrebu, Fundação de Amparo à Pesquisa do Estado de São Paulo, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Hrvatska Zaklada za Znanost, Financiadora de Estudos e Projetos, Universidade de São Paulo, Fundação de Amparo à Pesquisa e Inovação do Espírito Santo
OpenAlex ID: W2418525179