Premium
A New Manifestation of Magnetic After‐Effect
Author(s) -
Knowles J. E.,
van Groenou A. Broese
Publication year - 1966
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.19660140107
Subject(s) - demagnetizing field , magnetite , condensed matter physics , hysteresis , amplitude , loop (graph theory) , displacement (psychology) , rayleigh scattering , mechanics , magnetic field , materials science , magnetic hysteresis , magnetization , physics , nuclear magnetic resonance , optics , mathematics , metallurgy , psychology , quantum mechanics , combinatorics , psychotherapist
Minor hysteresis loops of magnetite were observed at room temperature. Immediately after demagnetization the loop was of the Rayleigh type, but changed with time, while a small alternating field was present into a very rectangular loop which disappeared abruptly after one hour. It is shown that if the amplitude of the wall displacement is large compared to the wall thickness, then instead of the wall forming a single potential well as described by the existing theory of magnetic after‐effect, it will form two adjacent wells, which give rise to the above phenomenon.