Low-cost, recyclable polysulfide stores data as nanometer-size indents, for erasable high density data storage

https://www.eurekalert.org/news-releases/1068605

"low-cost sulfur/ dicyclopentadiene... lower-energy, probe-based mechanical data storage... atomic force microscope/ scanning probe makes/ reads indentations... erasable in seconds by short bursts of heat, reusable several times... more dense than typical high density data storage"