Nanoscale amorphization of GeTe nanowire with conductive atomic force microscope.
We fabricated GeTe nanowires by using Au catalysis mediated vapor-liquid-solid method. The fabricated nanowires were confirmed by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. For a nanowire with - 150 nm diameter, we performed amorphization experiment with conductive atomic force microscope. We examined the structural change of the nanowire with several bias voltages from 0 V to 10 V. Above bias voltage of 6-7 V, some points of the nanowire showed transition to amorphous phase. The consumed energy for the amorphization was estimated to be 4-5 nJ, which was close to the other result of nanowire tested with a four probe device.
JunHo
J
Kim
D002384:Catalysis; D004553:Electric Conductivity; D005857:Germanium / Q000737:chemistry*; D006046:Gold / Q000737:chemistry; D018625:Microscopy, Atomic Force; D036103:Nanotechnology / Q000379:methods*; D053770:Nanowires / Q000737:chemistry*; D013691:Tellurium / Q000737:chemistry*; D014835:Volatilization
D005857:Germanium; D006046:Gold; D013691:Tellurium