Barkhausen avalanches in anisotropic ferromagnets with 180° domain walls
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| Type of Publication: | Journal article |
| URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-89275 |
| Author: | Tadić, Bosiljka; Nowak, Ulrich |
| Year of publication: | 2000 |
| Published in: | Physical Review E ; 61 (2000), 4. - pp. 4610-4613 |
| DOI (citable link): | https://dx.doi.org/10.1103/PhysRevE.61.4610 |
| Summary: |
We show that Barkhausen noise in two-dimensional disordered ferromagnets with extended domain walls is characterized by the avalanche size exponent t s51.54 at low disorder. With increasing disorder the characteristic domain size is reduced relative to the system size due to nucleation of new domains and a dynamic phase transition occurs to the scaling behavior with t s51.30. The exponents decrease at finite driving rate. The results agree with recently observed behavior in amorphous Metglas and Fe-Co-B ribbons when the applied anisotropic stress is varied.
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| PACS Classification: | 05.40.Ca; 75.60.Ej; 05.65.1b; 68.35.Ct |
| Subject (DDC): | 530 Physics |
| Link to License: | In Copyright |
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TADIĆ, Bosiljka, Ulrich NOWAK, 2000. Barkhausen avalanches in anisotropic ferromagnets with 180° domain walls. In: Physical Review E. 61(4), pp. 4610-4613. Available under: doi: 10.1103/PhysRevE.61.4610
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