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The Nucleation of Stripe Domains in Thin Ferromagnetic Films
Author(s) -
Holz A.,
Kronmüller H.
Publication year - 1969
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.19690310238
Subject(s) - permalloy , condensed matter physics , nucleation , ferromagnetism , anisotropy , materials science , thin film , perpendicular , wavelength , optics , physics , magnetization , mathematics , thermodynamics , geometry , quantum mechanics , nanotechnology , optoelectronics , magnetic field
A micromagnetic calculation is given of the critical thickness of the nucleation of stripe domains in thin ferromagnetic films with so‐called perpendicular anisotropy. The micromagnetic equations were solved in linear approximation by means of a complete system of functions. The paper presents the critical thickness D cr and the corresponding wavelength λ cr as a function of the ferromagnetic constants. The agreement between our calculations and the measurements of Saito et al. on permalloy is good. For Fe‐films good agreement with the measurements of Bourret and Dautreppe is obtained only for D cr but not for λ cr . The calculated value for λ cr is about a factor 1.5 greater than the experimental value.