Methods and apparatuses for nanoenabled memory devices and anisotropic
charge carrying arrays are described. In an aspect, a memory device
includes a substrate, a source region of the substrate, and a drain
region of the substrate. A population of nanoelements is deposited on the
substrate above a channel region, the population of nanolements in one
embodiment including metal quantum dots. A tunnel dielectric layer is
formed on the substrate overlying the channel region, and a metal
migration barrier layer is deposited over the dielectric layer. A gate
contact is formed over the thin film of nanoelements. The nanoelements
allow for reduced lateral charge transfer. The memory device may be a
single or multistate memory device. In a multistate memory device which
comprises one or more quantum dots or molecules having a plurality of
discrete energy levels, a method is disclosed for charging and/or
discharging the device which comprises filling each of the plurality of
discrete energy levels of each dot or molecule with one or more
electrons, and subsequently removing individual electrons at a time from
each discrete energy level of the one or more dots or molecules.