Dynamics of the polarization of a pinned domain wall in a magnetic nanowire

We consider the dynamics of the polarization of a single domain wall in a magnetic nanowire, which is strongly pinned by impurities. In this case the equation of motion for the polarization parameter does not include any other dynamical variables and is nonlinear due to magnetic anisotropy. We calcu...

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Bibliographic Details
Published inPhysica Status Solidi. B: Basic Solid State Physics Vol. 251; no. 1; pp. 235 - 238
Main Authors Sedlmayr, N., Dugaev, V. K., Berakdar, J.
Format Journal Article
LanguageEnglish
Published Blackwell Publishing Ltd 01.01.2014
Subjects
Current pulses
domain walls
magnetization dynamics
Mathematical analysis
Mathematical models
Nanomaterials
Nanowires
Nonlinear dynamics
Polarization
spintronics
Switching
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Summary:We consider the dynamics of the polarization of a single domain wall in a magnetic nanowire, which is strongly pinned by impurities. In this case the equation of motion for the polarization parameter does not include any other dynamical variables and is nonlinear due to magnetic anisotropy. We calculated numerically the magnetization dynamics for different choices of parameters under short current pulses inducing polarization switching. Our results show that the switching is most effective for very rapid current pulses. Damping also enhances the switching probability.
Bibliography:ark:/67375/WNG-57Z30ZG1-8
ArticleID:PSSB201350118
National Science Center in Poland
istex:FF3A15CFF3A9CB08CC6EF0A60071C82A2E4DDBCA
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ObjectType-Article-1
ObjectType-Feature-2
ISSN:0370-1972
1521-3951
DOI:10.1002/pssb.201350118