Graphene as memory

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POSTER: computer news   ||   GRAPHENE AS MEMORY	DATE:2013-07-02
A new experiment with graphene in the famous American Massachusetts Institute of Technology (MIT) has allowed to present this material as a basis for a new memory, capable of broadcasting signals in the optical domain.  Emphasize the optical signal in this case occurs without the use of traditional lasers and concomitant binding.  A strong link between the emerging two-dimensional plasmon in graphene and phonon-polariton in the ferroelectric.  Roughly speaking, the electrical signal in a layer graphene ferroelectric excites the flow of photons. To get the same effect as a graphene layer in the sandwich was placed between two layers of ferroelectric (as the researchers say, were inspired by a common memory using ferroelectric materials).  During the experiments, it was found out that this combination can operate at a frequency of terahertz signal level.  The density of the elements may be 10 times higher than the current density level, and even in addition, the transfer of electrical to optical signal. In addition to study the properties of the sandwich of graphene and ferroelectric showed that in local areas there is a memory effect with minimal energy consumption.  Also revealed that the optical waveguide channels in the material interact weakly with each other for a distance of about 20 nm (do not interfere).  This leads to a wiring organization to crystal with high density of channels.  Whatever Look - some advantages.  Some disadvantages, but they are crucial - no mature technology, no industrial base and no raw materials in industrial quantities.   Related Products :

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