Ferromagnetic structurally disordered ZnO implanted with Co ions
Abstract
We present superparamagnetic clusters of structurally highly disordered Co-Zn-O created by high fluence Co ion implantation into ZnO (0001) single crystals at low temperatures. This secondary phase cannot be detected by common x-ray diffraction but is observed by high-resolution transmission electron microscopy. In contrast to many other secondary phases in a ZnO matrix, it induces low-field anomalous Hall effect and is thus a candidate for magnetoelectronics applications.
- Publication:
-
Applied Physics Letters
- Pub Date:
- December 2008
- DOI:
- 10.1063/1.3040696
- arXiv:
- arXiv:0812.2580
- Bibcode:
- 2008ApPhL..93w2504P
- Keywords:
-
- 61.72.uj;
- 75.20.-g;
- 75.50.Tt;
- 75.50.Pp;
- 75.60.Ej;
- 61.46.Df;
- III-V and II-VI semiconductors;
- Diamagnetism paramagnetism and superparamagnetism;
- Fine-particle systems;
- nanocrystalline materials;
- Magnetic semiconductors;
- Magnetization curves hysteresis Barkhausen and related effects;
- Nanoparticles;
- Condensed Matter - Materials Science
- E-Print:
- 5 pages, 3 figures