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Magnetic After‐Effect in Deformed Cobalt Single Crystals
Author(s) -
Gerward L.
Publication year - 1967
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.19670220237
Subject(s) - annealing (glass) , cobalt , condensed matter physics , logarithm , materials science , magnetic relaxation , thermodynamics , physics , magnetic field , magnetization , mathematical analysis , mathematics , quantum mechanics , metallurgy
The magnetic after‐effect of deformed cobalt single crystals is investigated in the temperature region −120 to + 95 °C. Over the entire temperature region a weakly temperature‐dependent relaxation is found which obeys a logarithmic time law. Above room temperature another after‐effect is superimposed. This is interpreted as a diffusion aftereffect due to point defects. The annealing of the defects takes place at the same temperature, and obeys a first‐order rate equation. Methods of measurement are developed which take the annealing into account.