Patent ID: 6272038
Filing Date: 2001-08-07
Classification: B82Y,G11B,G11C,H01L

Abstract:
An apparatus for storing data, said apparatus comprising:a fixed electrode electrically coupled toa storage medium having a plurality of different and distinguishable oxidation states wherein data is stored in said oxidation states by the addition or withdrawal of one or more electrons from said storage medium via the electrically coupled electrode;and wherein said storage medium comprises a molecule having the formula: ##STR4##whereinP.sup.1 and P.sup.3 are porphyrinic macrocycles selected to have the same oxidation state;P.sup.2 is a porphyrinic macrocycle selected to have an oxidation state different from P.sup.1 and P.sup.3 ;J.sup.1 and J.sup.2 are independently selected linkers that permit electron transfer between the porphyrinic macrocycles;Q.sup.1 and Q.sup.2 are each independently selected linkers;wherein said storage medium comprises a molecule having at least four different and distinguishable oxidation states.