Change search
ReferencesLink to record
Permanent link

Direct link
Magnetic percolation in diluted magnetic semiconductors
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Material Physics.ORCID iD: 0000-0003-4341-5663
Show others and affiliations
2004 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 93, no 13, 137202- p.Article in journal (Refereed) Published
Abstract [en]

We demonstrate that the magnetic properties of diluted magnetic semiconductors are dominated by short ranged interatomic exchange interactions that have a strong directional dependence. By combining first principles calculations of interatomic exchange interactions with a classical Heisenberg model and Monte Carlo simulations, we reproduce the observed critical temperatures of a broad range of diluted magnetic semiconductors. We also show that agreement between theory and experiment is obtained only when the magnetic atoms are randomly positioned. This suggests that the ordering of diluted magnetic semiconductors is heavily influenced by magnetic percolation, and that the measured critical temperatures should be very sensitive to details in the sample preparation, in agreement with observations.

Place, publisher, year, edition, pages
2004. Vol. 93, no 13, 137202- p.
National Category
Materials Engineering Condensed Matter Physics
URN: urn:nbn:se:kth:diva-40561DOI: 10.1103/PhysRevLett.93.137202ISI: 000224131400072ScopusID: 2-s2.0-19644398048OAI: diva2:441565

QC 20110916

Available from: 2011-09-16 Created: 2011-09-16 Last updated: 2016-06-08Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Bergqvist, LarsKorzhavyi, Pavel
By organisation
Applied Material PhysicsMaterials Science and Engineering
In the same journal
Physical Review Letters
Materials EngineeringCondensed Matter Physics

Search outside of DiVA

GoogleGoogle Scholar
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

Altmetric score

Total: 58 hits
ReferencesLink to record
Permanent link

Direct link