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  • Title: Electron spin relaxation of the electron paramagnetic resonance spectra of cytochrome c.
    Author: Blum H, Ohnishi T.
    Journal: Biochim Biophys Acta; 1980 Jan 24; 621(1):9-18. PubMed ID: 6243492.
    Abstract:
    The progressive power saturation of the electron paramagnetic resonance (EPR) spectrum of ferricytochrome c has been investigated in order to determine the spin-lattice relaxation time of the center. We have generalized the usual saturation treatments to include the effects of extended sample size and anisotropic g values as well as derivative spectra. We find that the results are consistent with a T7 power law in the temperature range 6--25 K. At temperatures above 25 K the relaxation time is too short for successful power saturation. Observation of the linewidth shows that the relaxation behavior continues as a first-order Raman process to 50 K.
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