Abstract
We consider an effect of the demagnetizing field, produced by the magnetic moments of nuclei of3He, on coherent precession of spin in liquid spin polarized3He or in spin polarized solutions of3He in4He. Formulae for the shape of the precessing domain wall and for the relaxation rate of the coherently precessing structure are rederived taking into account the demagnetizing field. For pure3He and concentrated solutions of3He in4He the width of the domain wall increases and the relaxation rare decreases with polarization. Measurement of the relaxation rate of the precessing structure can be used as an alternative method for the determination of the spin diffusion coefficient in Fermi liquids.
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Fomin, I.A., Vermeulen, G.A. The effect of the demagnetizing field on coherent spin precession in a normal fermi liquid. J Low Temp Phys 106, 133–143 (1997). https://doi.org/10.1007/BF02403920
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DOI: https://doi.org/10.1007/BF02403920