Abstract
Quasi-aligned hexagonal Mg-doped aluminum nitride zigzag nanowires (AlN:Mg ZNWs) were fabricated on sapphire substrates using chemical vapor deposition method. A saturated magnetic moment of ∼1 emu/cm 3 was found in the AlN:Mg ZNWs when a magnetic field was applied parallel to the sample. The AlN:Mg ZNWs exhibited magnetic anisotropy. The magnetic moment was about 50% larger and the coercivity was about 20% smaller when the field was applied parallel to the sample as compared to the applied field perpendicular to the sample. The Curie temperature of the AlN:Mg ZNWs was above 400 K. The origin of the ferromagnetism in the AlN:Mg ZNWs could be attributed to the formation of Mg-N complex which leads to magnetic coupling as revealed by X-ray photoelectron spectroscopy. KGaA, Weinheim.
Original language | English |
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Pages (from-to) | 1988-1992 |
Number of pages | 5 |
Journal | Physica Status Solidi (A) Applications and Materials Science |
Volume | 209 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1 Oct 2012 |
Keywords
- AlN
- doping
- magnetic properties
- nanowires
- X-ray photoelectron spectroscopy
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry
- Electrical and Electronic Engineering