Abstract
The structural and magnetic properties of 30% and 50% Co-doped ZnO have been investigated in order to determine the influence of the presence of Co3+ as a potential p-type dopant. For 30% doping, Co3+ could be stabilized in the wurtzite lattice of ZnO without phase separation by providing high oxygen partial pressures during growth. At 50% Co concentration, the crystal lattice destabilizes. X-ray absorption spectroscopy and simulations are used to substantiate the valence and local structure of Co3+. Integral and element selective magnetometry reveals uncompensated antiferromagnetism of the Co atoms irrespective of being present as Co2+ or Co3+.
| Original language | English |
|---|---|
| Article number | 054406 |
| Pages (from-to) | 054406 |
| Number of pages | 7 |
| Journal | Physical Review B: Condensed Matter and Materials Physics |
| Volume | 95 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2017 |
Fields of science
- 210006 Nanotechnology
- 103 Physics, Astronomy
- 103011 Semiconductor physics
- 103018 Materials physics
- 202032 Photovoltaics
- 103009 Solid state physics
- 103017 Magnetism
JKU Focus areas
- Engineering and Natural Sciences (in general)