Long, nanometer-size metallic wires can be synthesized by injection of
the conducting melt into nanochannel insulating plates. Large-area ar
rays of parallel wires 200 nanometers in diameter and 50 micrometers l
ong with a packing density of 5 x 10(8) per square centimeter have bee
n fabricated in this way. When charged, the ends of the wires generate
strong, short-range electric fields. The nanowire electric fields hav
e been imaged at high spatial resolution with a scanning force microsc
ope.