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Effect of anisotropy distribution on local nucleation field in bistable ferromagnetic microwires
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| Title: | Effect of anisotropy distribution on local nucleation field in bistable ferromagnetic microwires |
| Author: | |
| Date: | 2019-06-07 |
| Language: | English |
| Scope: | 213901 |
| University/Institute: | Háskóli Íslands University of Iceland |
| School: | Verkfræði- og náttúruvísindasvið (HÍ) School of Engineering and Natural Sciences (UI) |
| Department: | Raunvísindastofnun (HÍ) Science Institute (UI) |
| Series: | Journal of Applied Physics;125(21) |
| ISSN: | 0021-8979 1089-7550 (eISSN) |
| DOI: | https://doi.org/10.1063/1.5091570 |
| Subject: | Segulmagn; Stærðfræðileg eðlisfræði |
| URI: | https://hdl.handle.net/20.500.11815/1489 |
Citation:Kwiatkowski, G. (2019). Effect of anisotropy distribution on local nucleation field in bistable ferromagnetic microwires. 125(21), 213901. doi:10.1063/1.5091570
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Abstract:Critical parameters defining the local nucleation field in amorphous ferromagnetic microwires with positive magnetostriction are obtained analytically through scaling procedures. An exact value of the nucleation field is obtained numerically as a function of geometric parameters of anisotropy distribution, which is fully taken into account instead of being averaged out. It is established that the value of the nucleation field depends predominantly on the steepness of the anisotropy change within the boundary between axial and radial domains, while the maximal value of anisotropy inside the wire or an overall average is not relevant.
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Description:Post-print (lokagerð höfundar)
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