For a good technical explanation at the physical level of a memory cell: https://pcper.com/2017/06/how-3d-xpoint-phase-change-memory-works/ https://pcper.com/2

For a good technical explanation at the physical level of a memory cell: https://pcper.com/2017/06/how-3d-xpoint-phase-change-memory-works/ https://pcper.com/2017/06/how-3d-xpoint-phase-change-memory-...