A phase-change memory cell may be formed with a carbon-containing interfacial layer that heats a phase-change material. By forming the phase-change material in contact, in one embodiment, with the carbon containing interfacial layer, the amount of heat that may be applied to the phase-change material,...http://www.google.de/patents/US6869841?utm_source=gb-gplus-sharePatent US6869841 - Carbon-containing interfacial layer for phase-change memory
