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Scanning electron microscopy image of the as-synthesized AlN nanowires.
X-ray diffraction patterns of AlN nanowires at different pressures. The asterisk denotes the occurrence of the new peaks of the rocksalt phase AlN.
Pressure-volume relation of AlN nanowires. The open hexagon represents the wurtzite phase. The solid squares represent the rocksalt phase. The line represents the fit to the Birch-Murnaghan equation. The error bar is 1%.
Transition pressure , completion of phase transition , volume collapse at transition , unit cell volume, and equation of state parameters ( and ) of wurtzite phase.
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