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Effects of Mn clustering on ferromagnetism in (Ga,Mn)As
| Content Provider | Semantic Scholar |
|---|---|
| Author | Raebiger, Hannes Hynninen, Teemu Ayuela, Andrés Boehm, Juhani Von |
| Copyright Year | 2006 |
| Abstract | Abstract The magnetic interactions of substitutional Mn clusters in (Ga,Mn)As are investigated using density-functional total-energy supercell calculations within the projector augmented-wave method. Magnetic coupling strength values are directly calculated from the parallel and antiparallel spin alignments, and then used to estimate the Curie temperature T C . The magnetic interactions both inside the clusters and between consequent clusters are investigated. We find that the ferromagnetic coupling inside the clusters is considerably larger than the coupling between two distant clusters, and that therefore the cluster–cluster magnetic coupling strength will determine the T C of the material. Our cluster–cluster T C values agree closely with experimental ones. |
| Starting Page | 643 |
| Ending Page | 646 |
| Page Count | 4 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.physb.2005.12.162 |
| Volume Number | 376 |
| Alternate Webpage(s) | https://aaltodoc.aalto.fi/bitstream/handle/123456789/2687/article3.pdf?isAllowed=y&sequence=4 |
| Alternate Webpage(s) | https://doi.org/10.1016/j.physb.2005.12.162 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
