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Elektronlokalisering och spinpolarisation i en kvantcirkel
Linköping University, Department of Physics, Chemistry and Biology.
2009 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Electron Localization and Spin Polarization in a Quantum Circle (Swedish)
Abstract [en]

Localization and magnetic properties of electrons in a thin, cyclic quasi one-dimensional GaAs wire with a central potential barrier were studied using the Hartree-Fock and LSDA (Local Spin Density Approximation, exchange only) and compared to more time consuming Quantum Monte-Carlo calculations. Within LSDA, evidence of true localization was found as well as evidence for the existence of both ferromagnetic as well as anti-ferromagnetic states. Also signs of two-dimensional spin localization was found, without associated localized electrons.

Place, publisher, year, edition, pages
2009. , 66 p.
Keyword [en]
Spin polarization, electron localization
National Category
Other Engineering and Technologies
Identifiers
URN: urn:nbn:se:liu:diva-19597ISRN: LiTH-IFM-A-EX--09/2198--SEOAI: oai:DiVA.org:liu-19597DiVA: diva2:226775
Presentation
2009-06-11, Mott, Fysikhuset, Linköping, 08:15 (English)
Uppsok
Physics, Chemistry, Mathematics
Supervisors
Examiners
Available from: 2009-08-03 Created: 2009-06-30 Last updated: 2009-08-03Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • 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