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Magnetic bubbles and stripe domains in nanostructured FePd elements

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Title: Magnetic bubbles and stripe domains in nanostructured FePd elements
Authors: Niedoba, H.1, Labrune, M.2 ml@lpmtm.univ-paris13.fr
Source: Journal of Magnetism & Magnetic Materials. Jul2009, Vol. 321 Issue 14, p2178-2186. 9p.
Subjects: Magnetic properties of iron-palladium alloys, Magnetic bubbles, Ferromagnetic materials, Magnetic domain, Magnetization, Nanostructures, Hysteresis loop, Computer simulation
Abstract: Abstract: The analysis of the magnetization process in rectangular thin dots exhibiting a canted anisotropy is reported. The studied dots with quality factor Q≈0.4 are large enough to sustain at least a bi-domain pattern at the remnant state. The various magnetic patterns observed in modeling hysteresis with the external field applied along one of the edges of the dot, moving from one saturated state to the opposite one, are described according to the length of the dots. The facts that the easy axis is tilted with respect to the normal of the dot surface, associated with the limited size of the dots, impose a double flux-closure scheme for the magnetization distribution. The reversal occurs via bubbles nucleation inside the dots followed by the transition to a stripe pattern. Furthermore, it is shown in the description of hysteresis loop that the full magnetization reversal needs successive injections of two sets of Bloch-points. Special attention is paid to topological problems associated with the injection and expulsion of these singularities. [Copyright &y& Elsevier]
Copyright of Journal of Magnetism & Magnetic Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 38911014
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Magnetic bubbles and stripe domains in nanostructured FePd elements
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  Data: <searchLink fieldCode="AR" term="%22Niedoba%2C+H%2E%22">Niedoba, H.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Labrune%2C+M%2E%22">Labrune, M.</searchLink><relatesTo>2</relatesTo><i> ml@lpmtm.univ-paris13.fr</i>
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  Data: <searchLink fieldCode="DE" term="%22Magnetic+properties+of+iron-palladium+alloys%22">Magnetic properties of iron-palladium alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+bubbles%22">Magnetic bubbles</searchLink><br /><searchLink fieldCode="DE" term="%22Ferromagnetic+materials%22">Ferromagnetic materials</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+domain%22">Magnetic domain</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetization%22">Magnetization</searchLink><br /><searchLink fieldCode="DE" term="%22Nanostructures%22">Nanostructures</searchLink><br /><searchLink fieldCode="DE" term="%22Hysteresis+loop%22">Hysteresis loop</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink>
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  Data: Abstract: The analysis of the magnetization process in rectangular thin dots exhibiting a canted anisotropy is reported. The studied dots with quality factor Q≈0.4 are large enough to sustain at least a bi-domain pattern at the remnant state. The various magnetic patterns observed in modeling hysteresis with the external field applied along one of the edges of the dot, moving from one saturated state to the opposite one, are described according to the length of the dots. The facts that the easy axis is tilted with respect to the normal of the dot surface, associated with the limited size of the dots, impose a double flux-closure scheme for the magnetization distribution. The reversal occurs via bubbles nucleation inside the dots followed by the transition to a stripe pattern. Furthermore, it is shown in the description of hysteresis loop that the full magnetization reversal needs successive injections of two sets of Bloch-points. Special attention is paid to topological problems associated with the injection and expulsion of these singularities. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Magnetism & Magnetic Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.jmmm.2009.01.007
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 9
        StartPage: 2178
    Subjects:
      – SubjectFull: Magnetic properties of iron-palladium alloys
        Type: general
      – SubjectFull: Magnetic bubbles
        Type: general
      – SubjectFull: Ferromagnetic materials
        Type: general
      – SubjectFull: Magnetic domain
        Type: general
      – SubjectFull: Magnetization
        Type: general
      – SubjectFull: Nanostructures
        Type: general
      – SubjectFull: Hysteresis loop
        Type: general
      – SubjectFull: Computer simulation
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      – TitleFull: Magnetic bubbles and stripe domains in nanostructured FePd elements
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            NameFull: Niedoba, H.
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            NameFull: Labrune, M.
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            – D: 15
              M: 07
              Text: Jul2009
              Type: published
              Y: 2009
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              Value: 321
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              Value: 14
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            – TitleFull: Journal of Magnetism & Magnetic Materials
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