uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • 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
Transient spin dynamics in a single-molecule magnet
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.ORCID iD: 0000-0002-9217-2218
2017 (English)In: Physical Review B, ISSN 2469-9950, E-ISSN 2469-9969, Vol. 96, no 21, article id 214401Article in journal (Refereed) Published
Abstract [en]

We explore the limitations and validity of semiclassically formulated spin equations of motion. Using a single-molecule magnet as a test model, we employ three qualitatively different approximation schemes. From a microscopic model, we derive a generalized spin equation of motion in which the parameters have a nonlocal time dependence. This dynamical equation is simplified to the Landau-Lifshitz-Gilbert equation with (i) time-dependent and (ii) time-independent parameters. We show that transient dynamics is essentially nonexisting in the latter approximation, while the former breaks down in the regime of strong coupling between the spin and the itinerant electrons.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2017. Vol. 96, no 21, article id 214401
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-343566DOI: 10.1103/PhysRevB.96.214401ISI: 000416846900001OAI: oai:DiVA.org:uu-343566DiVA, id: diva2:1187016
Available from: 2018-03-02 Created: 2018-03-02 Last updated: 2018-03-02Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Authority records BETA

Hammar, HenningFransson, Jonas

Search in DiVA

By author/editor
Hammar, HenningFransson, Jonas
By organisation
Materials Theory
In the same journal
Physical Review B
Condensed Matter Physics

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 19 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • 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