Influence of frequency of the excitation magnetic field and material's electric conductivity on domain wall dynamics in ferromagnetic materials
| Autor: | J.H. Espina-Hernández, José Manuel Hallen, A.F. Chávez-González, J.A. Pérez-Benítez, R. Grössinger |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Work (thermodynamics) Materials science Condensed matter physics Phase (waves) 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Signal Electronic Optical and Magnetic Materials law.invention Magnetic field Nuclear magnetic resonance Ferromagnetism law Electrical resistivity and conductivity 0103 physical sciences Eddy current 0210 nano-technology Excitation |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 401:287-295 |
| ISSN: | 0304-8853 |
| DOI: | 10.1016/j.jmmm.2015.10.045 |
| Popis: | The present work analyzes the influence of electric conductivity on the Magnetic Barkhausen Noise (MBN) signal using a microscopic model which includes the influence of eddy currents. This model is also implemented to explain the dependence of MBN on the frequency of the applied magnetic field. The results presented in this work allow analyzing the influence of eddy currents on MBN signals for different values of the material's electric conductivity and for different frequencies of applied magnetic field. Additionally, the outcomes of this research can be used as a reference to differentiate the influence of eddy currents from that of second phase particles in the MBN signal, which has been reported in previous works. |
| Databáze: | OpenAIRE |
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