Journal
JOURNAL OF MATERIALS SCIENCE
Volume 55, Issue 19, Pages 8325-8336Publisher
SPRINGER
DOI: 10.1007/s10853-020-04588-5
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Funding
- National Key Research and Development Program of China [2018YFB1500503-02]
- Natural Science Foundation of Hebei Province [A2016201087, F2018201058, F2017201101]
- National Natural Science Foundation of China [61504036, 11504028]
- Handan Science and Technology Bureau Project [1723209055-1]
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We experimentally fabricated uniformly distributed single-, double- and six-sided Sc-doped AlN (AlN:Sc) nanodendrites by a plasma-assisted direct current arc discharge method. The crystal structure, composition, morphological and microstructures were characterized, and the physical mechanisms governing the formation of AlN:Sc nanodendrites were examined. It was found that the morphology and the crystal orientation of the AlN nanodendrites can be controlled by tuning the N-2 pressure. The incorporation of Sc induces native point defects in AlN that contribute to the growth of hierarchical structures and affect the room-temperature photoluminescence. The AlN:Sc nanodendrites exhibit room-temperature anisotropic ferromagnetism, and this is strongly depend on the orientation of the nanodendrites. This work provides a facile strategy to fabricate complex hierarchical AlN:Sc nanostructures with manipulated magnetic properties which may find promising applications in spintronic nanodevices.
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