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57Fe NMR spectra in domain walls of hexagonal ferrites with magnetoplumbite structure

Authors:	H ?těpánková J Englich B Sedlák

Institution:	(1) Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, 121 16 Praha 2, Czechoslovakia

Abstract:	The domain wall NMR spectra of⁵⁷Fe were measured on polycrystalline samples of BaFe₁₂O₁₉ and SrFe₁₂O₁₉ at 4·2 K. We have calculated the anisotropy of the hyperfine field dipolar component. The measured NMR spectra were interpreted supposing that the hyperfine field anisotropy is caused only by the dipolar field anisotropy.

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