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[(a) and (b)] Schematics of asymmetrically formed InAs/GaAs radial nanowire heterostructure and its cross section, respectively. (c) SEM image showing InAs/GaAs nanowire heterostructures.
(a) Low magnification TEM image showing a section of a typical InAs/GaAs nanowire heterostructure. [(b) and (c)] TEM images of InAs/GaAs nanowire taken along the and zone axes, respectively. (d) TEM image of cross section of an InAs/GaAs nanowire heterostructure and (e) the corresponding diffraction pattern. (f) zone axis electron diffraction pattern taken from a section in (b). (f) High resolution TEM image of InAs/GaAs interface region with misfit dislocations arrowed.
(a) TEM image of the cross section of InAs/GaAs nanowire with 3 min InAs deposition. (b) The corresponding electron diffraction pattern.
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