US Patent 9331274 Memristive element and electronic memory based on such elements

The invention relates to a memristive element (M) formed by: a first electrode (10); a second electrode (30); and an active region (20) making direct electrical contact with said first and second electrodes, characterized in that said active region essentially consists of a thin film of an insertion compound containing at least one alkali metal, said compound being an oxide or chalcogenide of at least one transition metal and being able to conduct both electrons and ions. Non-volatile electronic memory formed from a plurality of such memristive elements.