Abstract
IN an investigation into the electron spin resonance of coal, I found a saturation effect depending on the percentage of carbon contained in the coal. The samples, all of them vitrinites, were examined in air; the frequency at which the measurements were made was 9,000 Mc./s.
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Uebersfeld, J., and Erb, E., C.R. Acad. Sci., Paris, 243, 2043 (1956).
Garif'yanov, N. S., and Kozyrev, B. M., Zh. Eksper. Teor. Fis., 30, 1160 (1956).
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SMIDT, J. Electron Spin Resonance of Coals: Saturation Effect. Nature 181, 176 (1958). https://doi.org/10.1038/181176a0
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DOI: https://doi.org/10.1038/181176a0
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