Abstract
The paper contains the results of the observation of frequency magnetic spectra on hematite crystals. Measurements were made in the frequency range from 20 to 90 MHz. The dependence of the spectra on the history of the sample, on the h.f. field, on an external static field and on temperature was studied. The observed spectra are interpreted on the basis of the resonance of domain walls fixed on defects of the crystal lattice. A model is proposed, explaining the observed changes in signal intensity of NMR.
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On leave from Department of Experimental Physics, A. Mickiewicz University, Poznaň, Poland.
The authors would like to thank Professor R. Rost and Dr. M. Vichr for the samples and Professor J. Brož and Dr. P. Šuda for valuable discussions concerning the studied problem.
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Sedlák, B., Szydłowski, H. The resonance of domain walls in hematite crystals. Czech J Phys 17, 889–893 (1967). https://doi.org/10.1007/BF01691640
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DOI: https://doi.org/10.1007/BF01691640