As of today, memory is either powered by Flash storage or RAM.
Flash memory is too slow to become default main memory in the unit while RAM is expensive and volatile.
Crystal-based storage and has been in use in optical disks and other tech for at least 15 years.
However the technology was cost prohibitive and used in high technology gadgets.
Then to read the bit back, a low voltage is applied.
This is how re-writable Blue-ray Discs store videos.
However, that may take years before IBM decides to commercially exploit the technology.
source: www.techworm.net
