Wednesday, August 28, 2013
Quantum effects in nanowires at room temperature: Further examination of the nanowires formed produced namely a surprising discovery: nearly all the wires that were formed had a length of 4.8 nanometers, or multiples thereof, and they nearly all contained twelve iridium atoms, or a multiple thereof. The researchers found the explanation for this in quantum effects. The wires of 4.8 nanometers (or multiples thereof) appear to be electronically stabilized by conduction electrons whose (half) wavelength (or a multiple thereof) fits precisely in the nanowire. The existence of these standing electron waves in the nanowires could be demonstrated experimentally. As this stabilizing effect will not occur in nanowires of iridium of a different length, they are formed more slowly.