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The antiphase boundary in half-metallic Heusler alloy Co2Fe(Al,Si): atomic structure, spin polarization reversal, and domain wall effects
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nedelkoski, Zlatko Sánchez, Ana M. Ghasemi, Arsham Hamaya, Kohei Evans, Richard F. L. Bell, Gavin R. Hirohata, Atsufumi Lazarov, Vlado K. |
| Copyright Year | 2016 |
| Abstract | Atomic resolution scanning transmission electron microscopy reveals the presence of an antiphase boundary in the half-metallic Co2Fe(Al,Si) full Heusler alloy. By employing the density functional theory calculations, we show that this defect leads to reversal of the sign of the spin-polarization in the vicinity of the defect. In addition, we show that this defect reduces the strength of the exchange interactions, without changing the ferromagnetic ordering across the boundary. Atomistic spin calculations predict that this effect reduces the width of the magnetic domain wall compared to that in the bulk. |
| Starting Page | 222405 |
| Ending Page | 222405 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1063/1.4971281 |
| Volume Number | 109 |
| Alternate Webpage(s) | http://eprints.whiterose.ac.uk/109711/1/1.4971281.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
