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Low‐Temperature FMR and FMAR Measurements of Metal Single Crystals. II. Saturation Magnetization, Magnetocrystalline Anisotropy, and g ‐Factor Determination
Author(s) -
Půst L.
Publication year - 1984
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221230114
Subject(s) - magnetocrystalline anisotropy , condensed matter physics , anisotropy , saturation (graph theory) , materials science , magnetization , metal , microwave , magnetic anisotropy , nuclear magnetic resonance , physics , magnetic field , optics , metallurgy , mathematics , quantum mechanics , combinatorics
FMR and FMAR fields measured on Fe—3.16 wt% Si single crystals between 3.5 and 300 K at microwave frequencies between 35 and 96 GHz are used to evaluate the saturation magnetization μ 0 M s , the first magnetocrystalline anisotropy constant K 1 , and the g ‐factor temperature dependences with accuracies of ±0.5 mT, ±0.15 kJ/m 3 , and ±0.0004, respectively. The g ‐factor is found to be temperature independent and the temperature dependence of μ 0 M s is described according to the spin‐wave theory.