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Medientyp: E-Artikel Titel: Study of magnetization processes using higher harmonic ac‐susceptibility Beteiligte: Prüfer, S.; Ziese, M. Erschienen: Wiley, 2008 Erschienen in: physica status solidi (b), 245 (2008) 8, Seite 1661-1668 Sprache: Englisch DOI: 10.1002/pssb.200844108 ISSN: 1521-3951; 0370-1972 Schlagwörter: Condensed Matter Physics ; Electronic, Optical and Magnetic Materials Entstehung: Anmerkungen: Beschreibung: AbstractThe ac‐susceptibility of a La0.7Sr0.3MnO3 epitaxial film was measured up to the 11th harmonic as a function of ac‐field amplitude, superimposed dc‐field and temperature. The experimental data reflect the magnetization hysteresis‐loop shape in a very precise and detailed way. This is further elucidated by numerical simulations of the ac‐susceptibility within a Preisach model with Gaussian distribution function. Using parameters from magnetization measurements the simulated ac‐susceptibility curves were found to be in good agreement with the experimental results. This shows that measurements of higher harmonic susceptibilities are a powerful tool for the precise study of magnetization processes. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)