Author
Listed:
- Alejandro Jiménez
- Rafael Real
- Manuel Vázquez
Abstract
The magnetization reversal in magnetostrictive amorphous microwires takes place by depinning and propagation of a single domain wall. This is a consequence of the particular domain structure determined by the strong uniaxial anisotropy from the reinforcement of magnetoelastic and shape contributions. In the present study, after an overview on the current state-of-the art on the topic, we introduce the general behaviour of single walls in 30 to 40 cm long Fe-base microwires propagating under homogeneous field. Depending on the way the walls are generated, we distinguish among three different walls namely, standard wall, DW st , depinned and propagating from the wire’s end under homogeneous field which motion is the first one to switch on; reverse wall, DW rev , propagating from the opposite end under non-homogeneous field, and defect wall, DW def , nucleated around local defect. Both, DW rev and DW def are observed only under large enough applied field. In the subsequent section, we study the propagation of a wall under applied field smaller than the switching field. There, we conclude that a minimum field, H dep,0 , is needed to depin the DW st , as well as that a minimum field, H prop,0 , is required for the wall to propagate long distances. In the last section, we analyse the shape of induced signals in the pickup coils upon the crossing of the walls and its correlation to the domain walls shape. We conclude that length and shape of the wall are significantly distorted by the fact that the wall is typically as long as the measuring coils. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2013
Suggested Citation
Alejandro Jiménez & Rafael Real & Manuel Vázquez, 2013.
"Controlling depinning and propagation of single domain-walls in magnetic microwires,"
The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 86(3), pages 1-9, March.
Handle:
RePEc:spr:eurphb:v:86:y:2013:i:3:p:1-9:10.1140/epjb/e2013-30922-9
DOI: 10.1140/epjb/e2013-30922-9
Download full text from publisher
As the access to this document is restricted, you may want to search for a different version of it.
Corrections
All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:spr:eurphb:v:86:y:2013:i:3:p:1-9:10.1140/epjb/e2013-30922-9. See general information about how to correct material in RePEc.
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
We have no bibliographic references for this item. You can help adding them by using this form .
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.springer.com .
Please note that corrections may take a couple of weeks to filter through
the various RePEc services.