Figure 6
From: Electron tunneling between vibrating atoms in a copper nano-filament
(a) Every Cu atom is connected to four Cu atoms in the next subjacent layer. Each connection between the Cu atoms corresponds to a unit resistance of Ro = 1/Go. (b) Pyramidal 3D resistor network with one atom at the top and three subjacent layers shown. (c) Projection of the pyramid onto the plane of the base of the pyramid. The first layer consists of one atom (black) the 4th layer consists of 16 atoms (orange). In general, nth layer consists of n2 atoms.
