Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Domain wall propagation in nanometric layers of (Ga,Mn)(As,P)
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Domain wall dynamics is the one of the most interesting topics in the field of Spintronics because of its potential applications in the development of memory devices. These studies of dynamics are particularly focused on dilute magnetic semiconductors (DMS) or ferromagnetic semiconductors, which are believed to be one of the future materials for Spintronics devices. Despite the fact that the Curie temperature of these DMS is still lower than room temperature the knowledge gained in this study can be applicable to other DMS systems and will unravel new phenomena for the dynamic behavior of domain walls.

In this work the dynamic behavior of magnetic domain walls in (Ga, Mn) (As, P) nanometric layers was studied. This was achieved with the use of longitudinal Kerr microscopy working at cryogenic temperature. The domain wall displacements were measured with the application of high enough magnetic fields for very short durations at two different temperatures. These magnetic fields were applied with the help of homemade microcoils used for the first time in this kind of study on DMS. A comparison is shown with the previous results obtained on the same material with a different magnetic anisotropy.

The results show very high domain wall velocities for this type of material, not reported previously. The velocity curves clearly show two distinct regions with different mobilities. Finally quantitative analyses are presented to explain these velocities.

Place, publisher, year, edition, pages
2011. , 58 p.
Keyword [en]
Domain Wall, Longitudinal Kerr Effect, (Ga, Mn)(As, P)
National Category
Other Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-159500OAI: oai:DiVA.org:kth-159500DiVA: diva2:785305
External cooperation
Pierre and Marie Curie University
Subject / course
Engineering Material Physics
Educational program
Degree of Master
Supervisors
Examiners
Available from: 2015-02-16 Created: 2015-02-02 Last updated: 2015-02-16Bibliographically approved

Open Access in DiVA

fulltext(3491 kB)377 downloads
File information
File name FULLTEXT01.pdfFile size 3491 kBChecksum SHA-512
2db4cb699d44252cd2206d36c59414ad7b2c16c22c4fa62584fd06951e6862881ca5a4210c2e3b353ea57740eef5dd93e575679967493d3a4baef961ca0d727e
Type fulltextMimetype application/pdf

By organisation
Materials Science and Engineering
Other Materials Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 377 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 81 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf